Masami Hiramatsu (Google) 16cc222026 tracing/probes: Add symstr type for dynamic events ... [ Upstream commit b26a124cbf ] Add 'symstr' type for storing the kernel symbol as a string data instead of the symbol address. This allows us to filter the events by wildcard symbol name. e.g. # echo 'e:wqfunc workqueue.workqueue_execute_start symname=$function:symstr' >> dynamic_events # cat events/eprobes/wqfunc/format name: wqfunc ID: 2110 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:__data_loc char[] symname; offset:8; size:4; signed:1; print fmt: " symname=\"%s\"", __get_str(symname) Note that there is already 'symbol' type which just change the print format (so it still stores the symbol address in the tracing ring buffer.) On the other hand, 'symstr' type stores the actual "symbol+offset/size" data as a string. Link: https://lore.kernel.org/all/166679930847.1528100.4124308529180235965.stgit@devnote3/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Stable-dep-of: 66bcf65d6c ("tracing/probes: Fix to avoid double count of the string length on the array") Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-08-03 10:23:54 +02:00
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coresight	perf tools changes for v6.1: 1st batch	2022-10-11 15:02:25 -07:00
postprocess	…
rv	rv/monitor: Add the wwnr monitor	2022-07-30 14:01:30 -04:00
boottime-trace.rst	docs/trace: fix a label of boottime-trace	2021-12-10 13:58:53 -07:00
events-kmem.rst	…
events-msr.rst	…
events-nmi.rst	…
events-power.rst	…
events.rst	tracing: Add ustring operation to filtering string pointers	2022-01-14 03:42:24 -05:00
fprobe.rst	docs: fprobe: Add fprobe description to ftrace-use.rst	2022-03-17 20:17:08 -07:00
ftrace-design.rst	…
ftrace-uses.rst	…
ftrace.rst	attr: use consistent sgid stripping checks	2023-03-03 11:52:25 +01:00
function-graph-fold.vim	…
hisi-ptt.rst	docs: trace: Add HiSilicon PTT device driver documentation	2022-09-08 18:41:22 -06:00
histogram-design.rst	…
histogram.rst	tracing/histogram: Update document for KEYS_MAX size	2022-10-18 15:41:56 -06:00
hwlat_detector.rst	…
index.rst	docs: trace: Add HiSilicon PTT device driver documentation	2022-09-08 18:41:22 -06:00
intel_th.rst	…
kprobes.rst	kprobes: kretprobe events missing on 2-core KVM guest	2023-01-04 11:28:58 +01:00
kprobetrace.rst	tracing/probes: Add symstr type for dynamic events	2023-08-03 10:23:54 +02:00
mmiotrace.rst	…
osnoise-tracer.rst	docs: Remove duplicated words in trace/osnoise-tracer	2022-02-24 10:42:20 -07:00
ring-buffer-design.rst	…
stm.rst	…
sys-t.rst	…
timerlat-tracer.rst	Delete duplicate words from kernel docs	2022-09-27 13:21:43 -06:00
tracepoint-analysis.rst	…
tracepoints.rst	…
uprobetracer.rst	tracing: Auto generate event name when creating a group of events	2022-07-24 19:11:17 -04:00
user_events.rst	tracing/user_events: Update ABI documentation to align to bits vs bytes	2022-09-29 10:17:37 -04:00