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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2020/10/05 13:00:47 UTC
[GitHub] [incubator-nuttx] YuuichiNakamura opened a new pull request #1936: Add task trace support
YuuichiNakamura opened a new pull request #1936:
URL: https://github.com/apache/incubator-nuttx/pull/1936
## Summary
This PR adds the features used for task trace.
The task trace is available by using `feature/task-tracer` branch in the following repository.
https://github.com/YuuichiNakamura/incubator-nuttx-apps.git
(I'll send PR for apps after merging this PR)
- This is created to merge #1377 into the master branch.
- The document for this feature will be created later (issue #1882)
## Impact
- New kernel configurations are added
CONFIG_SCHED_INSTRUMENTATION_FILTER,
CONFIG_SCHED_INSTRUMENTATION_FILTER_DEFAULT_MODE,
CONFIG_DRIVER_NOTECTL,
CONFIG_DRIVER_NOTERAM_NOOVERWRITE
- The following features are added when the corresponding configuration is enabled.
- note filter support
- /dev/notectl device to control note filters
- /dev/note ioctls to clear buffer and change buffering mode for task trace
## Testing
Tested by using `feature/task-tracer` branch in the following repository.
https://github.com/YuuichiNakamura/incubator-nuttx-apps.git
Tested by spresense:nsh by changing the following configurations.
```
CONFIG_DRIVER_NOTE=y
CONFIG_DRIVER_NOTERAM=y
CONFIG_DRIVER_NOTECTL=y
CONFIG_SCHED_INSTRUMENTATION=y
CONFIG_SCHED_INSTRUMENTATION_FILTER=y
CONFIG_SCHED_INSTRUMENTATION_IRQHANDLER=y
CONFIG_SCHED_INSTRUMENTATION_SYSCALL=y
```
`trace` command is added to nsh by this configuration.
```
nsh> trace cmd "usleep 1000"
nsh> trace dump
```
This can get the following results:
```
<noname>-1 [0] 7.640000000: sys_ioctl -> 0
<noname>-1 [0] 7.640000000: sys_close()
<noname>-1 [0] 7.640000000: sys_close -> 0
<noname>-1 [0] 7.640000000: sys_sched_lock()
<noname>-1 [0] 7.640000000: sys_sched_lock -> 0
<noname>-1 [0] 7.640000000: sys_nxsched_get_stackinfo()
<noname>-1 [0] 7.640000000: sys_nxsched_get_stackinfo -> 0
<noname>-1 [0] 7.640000000: sys_sched_unlock()
<noname>-1 [0] 7.640000000: sys_sched_unlock -> 0
<noname>-1 [0] 7.640000000: sys_clock_nanosleep()
<noname>-1 [0] 7.640000000: sched_switch: prev_comm=<noname> prev_pid=1 prev_state=S ==> next_comm=<noname> next_pid=0
<noname>-0 [0] 7.640000000: irq_handler_entry: irq=11
<noname>-0 [0] 7.640000000: irq_handler_exit: irq=11
<noname>-0 [0] 7.640000000: irq_handler_entry: irq=15
<noname>-0 [0] 7.650000000: irq_handler_exit: irq=15
<noname>-0 [0] 7.650000000: irq_handler_entry: irq=15
<noname>-0 [0] 7.660000000: sched_waking: comm=<noname> pid=1 target_cpu=0
<noname>-1 [0] 7.660000000: irq_handler_exit: irq=15
<noname>-1 [0] 7.660000000: sched_switch: prev_comm=<noname> prev_pid=1 prev_state=R ==> next_comm=<noname> next_pid=1
<noname>-1 [0] 7.660000000: sys_clock_nanosleep -> 0
```
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[GitHub] [incubator-nuttx] xiaoxiang781216 merged pull request #1936: Add task trace support
Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 merged pull request #1936:
URL: https://github.com/apache/incubator-nuttx/pull/1936
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[GitHub] [incubator-nuttx] jerpelea commented on pull request #1936: Add task trace support
Posted by GitBox <gi...@apache.org>.
jerpelea commented on pull request #1936:
URL: https://github.com/apache/incubator-nuttx/pull/1936#issuecomment-703659489
LGTM
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