aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/trace/trace_events_filter.c
diff options
context:
space:
mode:
authorTom Zanussi <zanussi@kernel.org>2020-01-29 12:59:24 -0600
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-01-30 09:46:28 -0500
commit86c5426baddae9ff192e3159b9c2e7c14e3964c6 (patch)
tree8b88a510fc8b50de5323b4e5644e56ec2315cd7b /kernel/trace/trace_events_filter.c
parenttracing: Add synth_event_delete() (diff)
downloadlinux-dev-86c5426baddae9ff192e3159b9c2e7c14e3964c6.tar.xz
linux-dev-86c5426baddae9ff192e3159b9c2e7c14e3964c6.zip
tracing: Add dynamic event command creation interface
Add an interface used to build up dynamic event creation commands, such as synthetic and kprobe events. Interfaces specific to those particular types of events and others can be built on top of this interface. Command creation is started by first using the dynevent_cmd_init() function to initialize the dynevent_cmd object. Following that, args are appended and optionally checked by the dynevent_arg_add() and dynevent_arg_pair_add() functions, which use objects representing arguments and pairs of arguments, initialized respectively by dynevent_arg_init() and dynevent_arg_pair_init(). Finally, once all args have been successfully added, the command is finalized and actually created using dynevent_create(). The code here for actually printing into the dyn_event->cmd buffer using snprintf() etc was adapted from v4 of Masami's 'tracing/boot: Add synthetic event support' patch. Link: http://lkml.kernel.org/r/1f65fa44390b6f238f6036777c3784ced1dcc6a0.1580323897.git.zanussi@kernel.org Signed-off-by: Tom Zanussi <zanussi@kernel.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events_filter.c')
0 files changed, 0 insertions, 0 deletions