Messages in this thread |  | | From | Jiri Olsa <> | Subject | [PATCHv2 0/5] perf tools: Enhance parsing events tracepoint error output | Date | Mon, 7 Sep 2015 10:38:02 +0200 |
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hi, enhancing parsing events tracepoint error output. Adding more verbose output when the tracepoint is not found or the tracing event path cannot be access.
$ sudo perf record -e sched:sched_krava ls event syntax error: 'sched:sched_krava' \___ unknown tracepoint
Error: File /sys/kernel/debug/tracing//tracing/events/sched/sched_krava not found. Hint: Perhaps this kernel misses some CONFIG_ setting to enable this feature?.
Run 'perf list' for a list of valid events ...
$ perf record -e sched:sched_krava ls event syntax error: 'sched:sched_krava' \___ can't access trace events
Error: No permissions to read /sys/kernel/debug/tracing//tracing/events/sched/sched_krava Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug'
Run 'perf list' for a list of valid events ...
v2 changes: - debugfs/tracefs changes went already in through separate patchset - more commentary on err.h interface - fixed callers of err.h enhanced functions - added extra tags/cscope fix
Also available in: git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/tp
thanks, jirka
--- Jiri Olsa (5): tools: Add err.h with ERR_PTR PTR_ERR interface perf tools: Add tools/include into tags directories perf tools: Propagate error info for the tracepoint parsing perf tools: Propagate error info from tp_format perf tools: Enhance parsing events tracepoint error output
tools/include/linux/err.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ tools/perf/Makefile.perf | 2 +- tools/perf/builtin-trace.c | 19 +++++++++++-------- tools/perf/tests/evsel-tp-sched.c | 10 ++++++++-- tools/perf/tests/openat-syscall-all-cpus.c | 3 ++- tools/perf/tests/openat-syscall-tp-fields.c | 3 ++- tools/perf/tests/openat-syscall.c | 3 ++- tools/perf/util/evlist.c | 3 ++- tools/perf/util/evsel.c | 11 +++++++++-- tools/perf/util/evsel.h | 3 +++ tools/perf/util/parse-events.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++---------------- tools/perf/util/parse-events.h | 3 ++- tools/perf/util/parse-events.y | 16 +++++++++------- tools/perf/util/trace-event.c | 13 +++++++++++-- 14 files changed, 161 insertions(+), 43 deletions(-) create mode 100644 tools/include/linux/err.h
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