linux/tools/verification/rv/include/in_kernel.h

// SPDX-License-Identifier: GPL-2.0
int ikm_list_monitors(void);
int ikm_run_monitor(char *monitor, int argc, char **argv);
tools/rv: Add in-kernel monitor interface Add the ability to control and trace in-kernel monitors. This is a generic interface, it will check for existing monitors and enable standard setup, like enabling reactors. For example: # rv list wip wakeup in preemptive per-cpu testing monitor. [OFF] wwnr wakeup while not running per-task testing model. [OFF] # rv mon wwnr --help rv version 6.1.0-rc4: help usage: rv mon wwnr [-h] [-q] [-r reactor] [-s] [-v] -h/--help: print this menu and the reactor list -r/--reactor 'reactor': enables the 'reactor' -s/--self: when tracing (-t), also trace rv command -t/--trace: trace monitor's event -v/--verbose: print debug messages available reactors: nop printk panic # rv mon wwnr --trace <TASK>-PID [CPU] TYPE ID STATE x EVENT -> NEXT_STATE FINAL \| \| \| \| \| \| \| \| \| rv-3613 [001] event 3613 running x switch_out -> not_running Y sshd-1248 [005] event 1248 running x switch_out -> not_running Y <idle>-0 [005] event 71 not_running x wakeup -> not_running Y <idle>-0 [005] event 71 not_running x switch_in -> running N kcompactd0-71 [005] event 71 running x switch_out -> not_running Y <idle>-0 [000] event 860 not_running x wakeup -> not_running Y <idle>-0 [000] event 860 not_running x switch_in -> running N systemd-oomd-860 [000] event 860 running x switch_out -> not_running Y <idle>-0 [000] event 860 not_running x wakeup -> not_running Y <idle>-0 [000] event 860 not_running x switch_in -> running N systemd-oomd-860 [000] event 860 running x switch_out -> not_running Y <idle>-0 [005] event 71 not_running x wakeup -> not_running Y <idle>-0 [005] event 71 not_running x switch_in -> running N kcompactd0-71 [005] event 71 running x switch_out -> not_running Y <idle>-0 [000] event 860 not_running x wakeup -> not_running Y <idle>-0 [000] event 860 not_running x switch_in -> running N systemd-oomd-860 [000] event 860 running x switch_out -> not_running Y <idle>-0 [001] event 3613 not_running x wakeup -> not_running Y Link: https://lkml.kernel.org/r/1e57547e3acadda6e23949b2672c89e76ec2ec42.1668180100.git.bristot@kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> 2022-11-11 16:53:06 +01:00			`// SPDX-License-Identifier: GPL-2.0`
			`int ikm_list_monitors(void);`
			`int ikm_run_monitor(char monitor, int argc, char *argv);`