royzah opened a new pull request, #20424:
URL: https://github.com/apache/nuttx/pull/20424
## Why
`timer_create()` checked the signal number only when `sigev_notify` was
exactly `SIGEV_SIGNAL`, so `SIGEV_SIGNAL | SIGEV_THREAD_ID` let any number
through to dispatch, and an expiring timer then failed its `DEBUGVERIFY`.
`nxsig_notification()` also honoured any thread ID, letting a process aim a
timer, message queue or driver notification at a thread of another process.
## How
| File | Does |
| --- | --- |
| `sig_notification.c` | refuses a bad signal number; a `SIGEV_THREAD_ID`
target must be in the owner's process, as on Linux |
| `timer_create.c` | refuses both up front with `EINVAL` |
Every build.
## Tested
| Where | Result |
| --- | --- |
| `qemu-armv8a:knsh` | `ostest` passes, its timer tests included; `hello` |
| `rv-virt:knsh64` | `hello`; `ostest` stops after `Started user_main at
PID=6`, as master does |
| `sim:ostest`, `qemu-armv8a:nsh` | build |
| i.MX93, PX4 kernel build | `timer_create()` with `SIGEV_THREAD_ID` at
another process's thread: `EINVAL` |
<details><summary><code>qemu-armv8a:knsh</code>: <code>hello</code>, then
<code>ostest</code></summary>
```
- Ready to Boot Primary CPU
- Boot from EL2
- Boot from EL1
- Boot to C runtime for OS Initialize
NuttShell (NSH)
nsh> /system/bin/hello
Hello, World!!
nsh> ostest
stdio_test: write fd=1
stdio_test: Standard I/O Check: printf
stdio_test: write fd=2
stdio_test: Standard I/O Check: fprintf to stderr
ostest_main: putenv(Variable1=BadValue3)
ostest_main: setenv(Variable1, GoodValue1, TRUE)
ostest_main: setenv(Variable2, BadValue1, FALSE)
ostest_main: setenv(Variable2, GoodValue2, TRUE)
ostest_main: setenv(Variable3, GoodValue3, FALSE)
ostest_main: setenv(Variable3, BadValue2, FALSE)
show_variable: Variable=Variable1 has value=GoodValue1
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
ostest_main: Started user_main at PID=7
user_main: vfork() test
vfork_test: Started
vfork_test: Child 8 ran and exited before the parent resumed
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena a000 c000
ordblks 2 3
mxordblk 5ff8 3ff8
uordblks 27d8 47e0
fordblks 7828 7820
user_main: Begin argument test
user_main: Started with argc=5
user_main: argv[0]="user_main"
user_main: argv[1]="Arg1"
user_main: argv[2]="Arg2"
user_main: argv[3]="Arg3"
user_main: argv[4]="Arg4"
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 3 3
mxordblk 3ff8 3ff8
uordblks 47e0 47e0
fordblks 7820 7820
user_main: getopt() test
getopt(): Simple test
getopt(): Invalid argument
getopt(): Missing optional argument
getopt_long(): Simple test
getopt_long(): No short options
getopt_long(): Argument for --option=argument
getopt_long(): Invalid long option
getopt_long(): Mixed long and short options
getopt_long(): Invalid short option
getopt_long(): Missing optional arguments
getopt_long_only(): Mixed long and short options
getopt_long_only(): Single hyphen long options
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 3 3
mxordblk 3ff8 3ff8
uordblks 47e0 47e0
fordblks 7820 7820
user_main: libc tests
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 3 3
mxordblk 3ff8 3ff8
uordblks 47e0 47e0
fordblks 7820 7820
show_variable: Variable=Variable1 has value=GoodValue1
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
show_variable: Variable=Variable1 has no value
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 3 4
mxordblk 3ff8 3ff8
uordblks 47e0 47c0
fordblks 7820 7840
show_variable: Variable=Variable1 has no value
show_variable: Variable=Variable2 has no value
show_variable: Variable=Variable3 has no value
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 4 3
mxordblk 3ff8 3ff8
uordblks 47c0 46e8
fordblks 7840 7918
user_main: setvbuf test
setvbuf_test: Test NO buffering
setvbuf_test: Using NO buffering
setvbuf_test: Test default FULL buffering
setvbuf_test: Using default FULL buffering
setvbuf_test: Test FULL buffering, buffer size 64
setvbuf_test: Using FULL buffering, buffer size 64
setvbuf_test: Test FULL buffering, pre-allocated buffer
setvbuf_test: Using FULL buffering, pre-allocated buffer
setvbuf_test: Test LINE buffering, buffer size 64
setvbuf_test: Using LINE buffering, buffer size 64
setvbuf_test: Test FULL buffering, pre-allocated buffer
setvbuf_test: Using FULL buffering, pre-allocated buffer
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 3 3
mxordblk 3ff8 3ff8
uordblks 46e8 46e8
fordblks 7918 7918
user_main: /dev/null test
dev_null: Read 0 bytes from /dev/null
dev_null: Wrote 1024 bytes to /dev/null
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 c000
ordblks 3 3
mxordblk 3ff8 3ff8
uordblks 46e8 46e8
fordblks 7918 7918
user_main: mutex test
Initializing mutex
Starting thread 1
Starting thread 2
Thread1 Thread2
Loops 32 32
Errors 0 0
Testing moved mutex
Starting moved mutex thread 1
Starting moved mutex thread 2
Thread1 Thread2
Moved Loops 32 32
Moved Errors 0 0
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena c000 10000
ordblks 3 4
mxordblk 3ff8 3ff8
uordblks 46e8 66f0
fordblks 7918 9910
user_main: timed mutex test
mutex_test: Initializing mutex
mutex_test: Starting thread
pthread: Started
pthread: Waiting for lock or timeout
mutex_test: Unlocking
pthread: Got the lock
pthread: Waiting for lock or timeout
pthread: Got the timeout. Terminating
mutex_test: PASSED
timedmutex regression test: PASSED
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 10000 10000
ordblks 4 4
mxordblk 3ff8 3ff8
uordblks 66f0 66f0
fordblks 9910 9910
user_main: cancel test
cancel_test: Test 1a: Normal Cancellation
cancel_test: Starting thread
start_thread: Initializing mutex
start_thread: Initializing cond
start_thread: Starting thread
start_thread: Yielding
sem_waiter: Taking mutex
sem_waiter: Starting wait for condition
cancel_test: Canceling thread
cancel_test: Joining
cancel_test: waiter exited with result=0xffffffffffffffff
cancel_test: PASS thread terminated with PTHREAD_CANCELED
cancel_test: Test 2: Asynchronous Cancellation
... Skipped
cancel_test: Test 3: Cancellation of detached thread
cancel_test: Re-starting thread
restart_thread: Destroying cond
restart_thread: Destroying mutex
restart_thread: Re-starting thread
start_thread: Initializing mutex
start_thread: Initializing cond
start_thread: Starting thread
start_thread: Yielding
sem_waiter: Taking mutex
sem_waiter: Starting wait for condition
cancel_test: Canceling thread
cancel_test: Joining
cancel_test: PASS pthread_join failed with status=ESRCH
cancel_test: Test 5: Non-cancelable threads
cancel_test: Re-starting thread (non-cancelable)
restart_thread: Destroying cond
restart_thread: Destroying mutex
restart_thread: Re-starting thread
start_thread: Initializing mutex
start_thread: Initializing cond
start_thread: Starting thread
start_thread: Yielding
sem_waiter: Taking mutex
sem_waiter: Starting wait for condition
sem_waiter: Setting non-cancelable
cancel_test: Canceling thread
cancel_test: Joining
sem_waiter: Releasing mutex
sem_waiter: Setting cancelable
cancel_test: waiter exited with result=0xffffffffffffffff
cancel_test: PASS thread terminated with PTHREAD_CANCELED
cancel_test: Test 6: Cancel message queue wait
cancel_test: Starting thread (cancelable)
Skipped
cancel_test: Test 7: Cancel signal wait
cancel_test: Starting thread (cancelable)
Skipped
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 10000 10000
ordblks 4 3
mxordblk 3ff8 7ff8
uordblks 66f0 46e8
fordblks 9910 b918
user_main: robust test
robust_test: Initializing mutex
robust_test: Starting thread
robust_waiter: Taking mutex
robust_waiter: Exiting with mutex
robust_test: Take the lock again
robust_test: Make the mutex consistent again.
robust_test: Take the lock again
robust_test: Joining
robust_test: waiter exited with result=0
robust_test: Test complete with nerrors=0
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 10000 10000
ordblks 3 3
mxordblk 7ff8 7ff8
uordblks 46e8 46e8
fordblks b918 b918
user_main: semaphore test
sem_test: Initializing semaphore to 0
sem_test: Starting waiter thread 1
sem_test: Set thread 1 priority to 191
waiter_func: Thread 1 Started
waiter_func: Thread 1 initial semaphore value = 0
waiter_func: Thread 1 waiting on semaphore
sem_test: Starting waiter thread 2
sem_test: Set thread 2 priority to 128
waiter_func: Thread 2 Started
waiter_func: Thread 2 initial semaphore value = -1
waiter_func: Thread 2 waiting on semaphore
sem_test: Starting poster thread 3
sem_test: Set thread 3 priority to 64
poster_func: Thread 3 started
poster_func: Thread 3 semaphore value = -2
poster_func: Thread 3 posting semaphore
waiter_func: Thread 1 awakened
waiter_func: Thread 1 new semaphore value = -1
waiter_func: Thread 1 done
poster_func: Thread 3 new semaphore value = -1
poster_func: Thread 3 semaphore value = -1
poster_func: Thread 3 posting semaphore
waiter_func: Thread 2 awakened
waiter_func: Thread 2 new semaphore value = 0
waiter_func: Thread 2 done
poster_func: Thread 3 new semaphore value = 0
poster_func: Thread 3 done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 10000 14000
ordblks 3 5
mxordblk 7ff8 3ff8
uordblks 46e8 86f8
fordblks b918 b908
user_main: timed semaphore test
semtimed_test: Initializing semaphore to 0
semtimed_test: Waiting for two second timeout
semtimed_test: PASS: first test returned timeout
BEFORE: (1646092835 sec, 452135344 nsec)
AFTER: (1646092837 sec, 452908704 nsec)
semtimed_test: Starting poster thread
semtimed_test: Set thread 1 priority to 191
semtimed_test: Starting poster thread 3
semtimed_test: Set thread 3 priority to 64
semtimed_test: Waiting for two second timeout
poster_func: Waiting for 1 second
poster_func: Posting
semtimed_test: PASS: sem_timedwait succeeded
BEFORE: (1646092837 sec, 453214576 nsec)
AFTER: (1646092838 sec, 453929296 nsec)
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 14000 14000
ordblks 5 3
mxordblk 3ff8 bff8
uordblks 86f8 46e8
fordblks b908 f918
user_main: condition variable test
cond_test: Initializing mutex
cond_test: Initializing cond
cond_test: Starting waiter
cond_test: Set thread 1 priority to 128
waiter_thread: Started
cond_test: Starting signaler
cond_test: Set thread 2 priority to 64
thread_signaler: Started
thread_signaler: Terminating
cond_test: signaler terminated, now cancel the waiter
cond_test: Waiter Signaler
cond_test: Loops 32 32
cond_test: Errors 0 0
cond_test:
cond_test: 0 times, waiter did not have to wait for data
cond_test: 0 times, data was already available when the signaler run
cond_test: 0 times, the waiter was in an unexpected state when the signaler
ran
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 14000 14000
ordblks 3 3
mxordblk bff8 7ff8
uordblks 46e8 46e8
fordblks f918 f918
user_main: pthread_exit() test
pthread_exit_test: Started pthread_exit_main at PID=37
pthread_exit_main 37: Starting pthread_exit_thread
pthread_exit_main 37: Sleeping for 5 seconds
pthread_exit_thread 40: Sleeping for 10 second
pthread_exit_main 37: Calling pthread_exit()
pthread_exit_thread 40: Still running...
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 14000 14000
ordblks 3 4
mxordblk 7ff8 7ff8
uordblks 46e8 66f0
fordblks f918 d910
user_main: pthread_rwlock test
pthread_rwlock: Initializing rwlock
pthread_exit_thread 40: Exiting
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 14000 18000
ordblks 4 5
mxordblk 7ff8 5ff8
uordblks 66f0 86f8
fordblks d910 f908
user_main: pthread_rwlock_cancel test
pthread_rwlock_cancel: Starting test
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 5 2
mxordblk 5ff8 13ff8
uordblks 86f8 26e0
fordblks f908 15920
user_main: timed wait test
thread_waiter: Initializing mutex
timedwait_test: Initializing cond
timedwait_test: Starting waiter
timedwait_test: Set thread 2 priority to 177
thread_waiter: Taking mutex
thread_waiter: Starting 5 second wait for condition
timedwait_test: Joining
thread_waiter: pthread_cond_timedwait timed out
thread_waiter: Releasing mutex
thread_waiter: Exit with status 0x12345678
timedwait_test: waiter exited with result=0x12345678
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 2 3
mxordblk 13ff8 fff8
uordblks 26e0 46e8
fordblks 15920 13918
user_main: timed message queue test
timedmqueue_test: Starting sender
timedmqueue_test: Waiting for sender to complete
sender_thread: Starting
sender_thread: mq_timedsend succeeded on msg 0
sender_thread: mq_timedsend succeeded on msg 1
sender_thread: mq_timedsend succeeded on msg 2
sender_thread: mq_timedsend succeeded on msg 3
sender_thread: mq_timedsend succeeded on msg 4
sender_thread: mq_timedsend succeeded on msg 5
sender_thread: mq_timedsend succeeded on msg 6
sender_thread: mq_timedsend succeeded on msg 7
sender_thread: mq_timedsend succeeded on msg 8
sender_thread: mq_timedsend 9 timed out as expected
sender_thread: returning nerrors=0
timedmqueue_test: Starting receiver
timedmqueue_test: Waiting for receiver to complete
receiver_thread: Starting
receiver_thread: mq_timedreceive succeed on msg 0
receiver_thread: mq_timedreceive succeed on msg 1
receiver_thread: mq_timedreceive succeed on msg 2
receiver_thread: mq_timedreceive succeed on msg 3
receiver_thread: mq_timedreceive succeed on msg 4
receiver_thread: mq_timedreceive succeed on msg 5
receiver_thread: mq_timedreceive succeed on msg 6
receiver_thread: mq_timedreceive succeed on msg 7
receiver_thread: mq_timedreceive succeed on msg 8
receiver_thread: Receive 9 timed out as expected
receiver_thread: returning nerrors=0
timedmqueue_test: Test complete
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 3 3
mxordblk fff8 fff8
uordblks 46e8 46e8
fordblks 13918 13918
user_main: sigprocmask test
sigprocmask_test: SUCCESS
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 3 3
mxordblk fff8 fff8
uordblks 46e8 46e8
fordblks 13918 13918
user_main: message queue test
mqueue_test: Starting receiver
mqueue_test: Set receiver priority to 128
receiver_thread: Starting
mqueue_test: Starting sender
mqueue_test: Set sender thread priority to 64
mqueue_test: Waiting for sender to complete
sender_thread: Starting
receiver_thread: mq_receive succeeded on msg 0
sender_thread: mq_send succeeded on msg 0
receiver_thread: mq_receive succeeded on msg 1
sender_thread: mq_send succeeded on msg 1
receiver_thread: mq_receive succeeded on msg 2
sender_thread: mq_send succeeded on msg 2
receiver_thread: mq_receive succeeded on msg 3
sender_thread: mq_send succeeded on msg 3
receiver_thread: mq_receive succeeded on msg 4
sender_thread: mq_send succeeded on msg 4
receiver_thread: mq_receive succeeded on msg 5
sender_thread: mq_send succeeded on msg 5
receiver_thread: mq_receive succeeded on msg 6
sender_thread: mq_send succeeded on msg 6
receiver_thread: mq_receive succeeded on msg 7
sender_thread: mq_send succeeded on msg 7
receiver_thread: mq_receive succeeded on msg 8
sender_thread: mq_send succeeded on msg 8
receiver_thread: mq_receive succeeded on msg 9
sender_thread: mq_send succeeded on msg 9
sender_thread: returning nerrors=0
mqueue_test: Killing receiver
receiver_thread: mq_receive interrupted!
receiver_thread: returning nerrors=0
mqueue_test: Canceling receiver
mqueue_test: receiver has already terminated
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 3 4
mxordblk fff8 bff8
uordblks 46e8 66f0
fordblks 13918 11910
user_main: signal handler test
sighand_test: Initializing semaphore to 0
sighand_test: Unmasking SIGCHLD
sighand_test: Registering SIGCHLD handler
sighand_test: Starting waiter task
sighand_test: Started waiter_main pid=58
waiter_main: Waiter started
waiter_main: Unmasking signal 32
waiter_main: Registering signal handler
waiter_main: oact.sigaction=0 oact.sa_flags=0 oact.sa_mask=0000000000000000
waiter_main: Waiting on semaphore
sighand_test: Signaling pid=58 with signo=32 sigvalue=42
waiter_main: sem_wait() successfully interrupted by signal
waiter_main: done
sighand_test: done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 4 3
mxordblk bff8 fff8
uordblks 66f0 46e8
fordblks 11910 13918
user_main: nested signal handler test
signest_test: Starting signal waiter task at priority 101
waiter_main: Waiter started
waiter_main: Setting signal mask
waiter_main: Registering signal handler
waiter_main: Waiting on semaphore
signest_test: Started waiter_main pid=59
signest_test: Starting interfering task at priority 102
interfere_main: Waiting on semaphore
signest_test: Started interfere_main pid=60
signest_test: Simple case:
Total signalled 1180 Odd=580 Even=600
Total handled 1180 Odd=580 Even=600
Total nested 0 Odd=0 Even=0
signest_test: With task locking
Total signalled 2360 Odd=1160 Even=1200
Total handled 2360 Odd=1160 Even=1200
Total nested 0 Odd=0 Even=0
signest_test: With interfering thread
Total signalled 3540 Odd=1740 Even=1800
Total handled 3540 Odd=1740 Even=1800
Total nested 0 Odd=0 Even=0
signest_test: done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 3 4
mxordblk fff8 bff8
uordblks 46e8 66f0
fordblks 13918 11910
user_main: POSIX timer test
timer_test: Masking signal 32
timer_test: Creating timer
timer_test: Starting timer
timer_test: Waiting on sigwaitinfo
timer_test: sigwaitinfo() returned signo=32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: g_nsigreceived=1
timer_test: Waiting on sigwaitinfo
timer_test: sigwaitinfo() returned signo=32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: g_nsigreceived=2
timer_test: Waiting on sigwaitinfo
timer_test: sigwaitinfo() returned signo=32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: g_nsigreceived=3
timer_test: Waiting on sigwaitinfo
timer_test: sigwaitinfo() returned signo=32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: g_nsigreceived=4
timer_test: Waiting on sigwaitinfo
timer_test: sigwaitinfo() returned signo=32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: g_nsigreceived=5
timer_test: Deleting timer
timer_test: done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 4 4
mxordblk bff8 bff8
uordblks 66f0 66f0
fordblks 11910 11910
user_main: round-robin scheduler test
rr_test: Set thread priority to 1
rr_test: Set thread policy to SCHED_RR
rr_test: Starting first get_primes_thread
First get_primes_thread: 61
rr_test: Starting second get_primes_thread
Second get_primes_thread: 62
rr_test: Waiting for threads to complete -- this should take awhile
If RR scheduling is working, they should start and complete at
about the same time
get_primes_thread id=1 started, looking for primes < 30000, doing 10 run(s)
get_primes_thread id=2 started, looking for primes < 30000, doing 10 run(s)
get_primes_thread id=1 finished, found 3246 primes, last one was 29989
get_primes_thread id=2 finished, found 3246 primes, last one was 29989
rr_test: Done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 18000
ordblks 4 4
mxordblk bff8 bff8
uordblks 66f0 66f0
fordblks 11910 11910
user_main: barrier test
barrier_test: Initializing barrier
barrier_test: Thread 0 created
barrier_test: Thread 1 created
barrier_test: Thread 2 created
barrier_test: Thread 3 created
barrier_test: Thread 4 created
barrier_test: Thread 5 created
barrier_test: Thread 6 created
barrier_test: Thread 7 created
barrier_func: Thread 0 started
barrier_func: Thread 1 started
barrier_func: Thread 2 started
barrier_func: Thread 3 started
barrier_func: Thread 4 started
barrier_func: Thread 5 started
barrier_func: Thread 6 started
barrier_func: Thread 7 started
barrier_func: Thread 0 calling pthread_barrier_wait()
barrier_func: Thread 1 calling pthread_barrier_wait()
barrier_func: Thread 2 calling pthread_barrier_wait()
barrier_func: Thread 3 calling pthread_barrier_wait()
barrier_func: Thread 4 calling pthread_barrier_wait()
barrier_func: Thread 5 calling pthread_barrier_wait()
barrier_func: Thread 6 calling pthread_barrier_wait()
barrier_func: Thread 7 calling pthread_barrier_wait()
barrier_func: Thread 7, back with status=PTHREAD_BARRIER_SERIAL_THREAD (I AM
SPECIAL)
barrier_func: Thread 0, back with status=0 (I am not special)
barrier_func: Thread 1, back with status=0 (I am not special)
barrier_func: Thread 2, back with status=0 (I am not special)
barrier_func: Thread 3, back with status=0 (I am not special)
barrier_func: Thread 4, back with status=0 (I am not special)
barrier_func: Thread 5, back with status=0 (I am not special)
barrier_func: Thread 6, back with status=0 (I am not special)
barrier_func: Thread 7 done
barrier_func: Thread 0 done
barrier_func: Thread 1 done
barrier_func: Thread 2 done
barrier_func: Thread 3 done
barrier_func: Thread 4 done
barrier_func: Thread 5 done
barrier_func: Thread 6 done
barrier_test: Thread 0 completed with result=0
barrier_test: Thread 1 completed with result=0
barrier_test: Thread 2 completed with result=0
barrier_test: Thread 3 completed with result=0
barrier_test: Thread 4 completed with result=0
barrier_test: Thread 5 completed with result=0
barrier_test: Thread 6 completed with result=0
barrier_test: Thread 7 completed with result=0
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 18000 28000
ordblks 4 10
mxordblk bff8 3ff8
uordblks 66f0 12720
fordblks 11910 158e0
user_main: scheduler lock test
sched_lock: Starting lowpri_thread at 97
sched_lock: Set lowpri_thread priority to 97
sched_lock: Starting highpri_thread at 98
sched_lock: Set highpri_thread priority to 98
sched_lock: Waiting...
sched_lock: PASSED No pre-emption occurred while scheduler was locked.
sched_lock: Starting lowpri_thread at 97
sched_lock: Set lowpri_thread priority to 97
sched_lock: Starting highpri_thread at 98
sched_lock: Set highpri_thread priority to 98
sched_lock: Waiting...
sched_lock: PASSED No pre-emption occurred while scheduler was locked.
sched_lock: Finished
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 28000 28000
ordblks 10 4
mxordblk 3ff8 1bff8
uordblks 12720 66f0
fordblks 158e0 21910
Final memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena a000 28000
ordblks 2 4
mxordblk 5ff8 1bff8
uordblks 27d8 66f0
fordblks 7828 21910
user_main: Exiting
ostest_main: Exiting with status 0
nsh> qemu-system-aarch64: terminating on signal 15 from pid 1 (timeout)
```
</details>
<details><summary><code>rv-virt:knsh64</code>: <code>hello</code>, then
<code>ostest</code>; identical to master's</summary>
```
OpenSBI v0.9
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : riscv-virtio,qemu
Platform Features : timer,mfdeleg
Platform HART Count : 1
Firmware Base : 0x80000000
Firmware Size : 100 KB
Runtime SBI Version : 0.2
Domain0 Name : root
Domain0 Boot HART : 0
Domain0 HARTs : 0*
Domain0 Region00 : 0x0000000080000000-0x000000008001ffff ()
Domain0 Region01 : 0x0000000000000000-0xffffffffffffffff (R,W,X)
Domain0 Next Address : 0x0000000080200000
Domain0 Next Arg1 : 0x0000000087000000
Domain0 Next Mode : S-mode
Domain0 SysReset : yes
Boot HART ID : 0
Boot HART Domain : root
Boot HART ISA : rv64imafdcsu
Boot HART Features : scounteren,mcounteren,time
Boot HART PMP Count : 16
Boot HART PMP Granularity : 4
Boot HART PMP Address Bits: 54
Boot HART MHPM Count : 0
Boot HART MHPM Count : 0
Boot HART MIDELEG : 0x0000000000000222
Boot HART MEDELEG : 0x000000000000b109
ABC
NuttShell (NSH)
nsh> /system/bin/hello
Hello, World!!
nsh> ostest
stdio_test: write fd=1
stdio_test: Standard I/O Check: printf
stdio_test: write fd=2
stdio_test: Standard I/O Check: fprintf to stderr
ostest_main: putenv(Variable1=BadValue3)
ostest_main: setenv(Variable1, GoodValue1, TRUE)
ostest_main: setenv(Variable2, BadValue1, FALSE)
ostest_main: setenv(Variable2, GoodValue2, TRUE)
ostest_main: setenv(Variable3, GoodValue3, FALSE)
ostest_main: setenv(Variable3, BadValue2, FALSE)
show_variable: Variable=Variable1 has value=GoodValue1
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
ostest_main: Started user_main at PID=6
qemu-system-riscv64: terminating on signal 15 from pid 1 (timeout)
```
</details>
`tools/checkpatch.sh -c -u -m -g` clean.
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