Messages in this thread | | | From | "Masami Hiramatsu (Google)" <> | Subject | [PATCH v2 0/2] tracing/probes: Add 'symstr' type for probes | Date | Thu, 27 Oct 2022 00:48:19 +0900 |
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Hi,
Here is the 2nd version of the patches to add the 'symstr' type for kprobe/eprobe events. This version removes redundant strlen()[1/2] and fixes indentation [2/2].
This type converts given value into kernel symbol string and stores it as a dymanic symbol in the trace ring buffer entry. Thus, user who reads the raw ring buffer data doesn't need to resolve the symbol name afterwards.
This is similar to the existing 'symbol' type. The 'symbol' type stores the address value itself to the entry, it only *shows* the symbol name when it is printed.
Thank you,
---
Masami Hiramatsu (Google) (2): tracing/probes: Add symstr type for dynamic events tracing/probes: Reject symbol/symstr type for uprobe
Documentation/trace/kprobetrace.rst | 8 ++ kernel/trace/trace.c | 2 - kernel/trace/trace_probe.c | 65 +++++++++++++------- kernel/trace/trace_probe.h | 19 ++++-- kernel/trace/trace_probe_tmpl.h | 47 ++++++++++++++ kernel/trace/trace_uprobe.c | 3 + .../ftrace/test.d/kprobe/uprobe_syntax_errors.tc | 5 ++ 7 files changed, 113 insertions(+), 36 deletions(-)
-- Masami Hiramatsu (Google) <mhiramat@kernel.org>
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