| Commit message (Collapse) | Author | Age |
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Add information to each trace message that makes it easier to locate
where it came from. It is disabled by default since this adds a lot of
clutter. Example:
81281 P1 [gsnedf_schedule@litmus/sched_gsn_edf.c:406]: (rtspin/1483:1) blocks:0 out_of_time:0 np:0 sleep:1 preempt:0 state:0 sig:0
81282 P1 [job_completion@litmus/sched_gsn_edf.c:303]: (rtspin/1483:1) job_completion().
81283 P1 [__add_release@litmus/rt_domain.c:344]: (rtspin/1483:2) add_release(), rel=41941764351
81284 P1 [gsnedf_schedule@litmus/sched_gsn_edf.c:453]: (rtspin/1483:2) scheduled_on = NO_CPU
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For some problems it can be helpful to know which job of a task
generated a log message. This patch changes TRACE_TASK to add :<jobno>
to the existing (<comm>/<pid>) tag.
The result is a trace such as the following, in which the third job of
rtspin/1511 completes and the fourth job is added to the release
queue.
137615 P0: (rtspin/1511:3) job_completion().
137616 P0: (rtspin/1511:4) add_release(), rel=262013223089
137617 P0: (rtspin/1511:4) scheduled_on = NO_CPU
The job number for non-real-time tasks is always zero.
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Linux now has a macro of the same name, which causes namespace
collisions. Since our version is only being used in two places that
haven't triggered in several years, let's just remove it.
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The TRACE() functionality doesn't need all of litmus.h. Currently,
it's impossible to use TRACE() in sched.h due to a circular
dependency. This patch moves TRACE() and friends to
litmus/sched_debug.h, which can be included in sched.h.
While at it, also fix some minor include ugliness that was revealed by
this change.
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