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ftrace: kprobe: uprobe: Add x8/x16/x32/x64 for hexadecimal types

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Add x8/x16/x32/x64 for hexadecimal type casting to kprobe/uprobe event
tracer.

These type casts can be used for integer arguments for explicitly
showing them in hexadecimal digits in formatted text.

Signed-off-by: Masami Hiramatsu <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Hemant Kumar <[email protected]>
Cc: Naohiro Aota <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/r/147151067029.12957.11591314629326414783.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Masami Hiramatsu 2016-08-18 17:57:50 +09:00 • committed by Arnaldo Carvalho de Melo
commit 17ce3dc7e5
7 changed files with 40 additions and 19 deletions
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4
Documentation/trace/kprobetrace.txt
View file

@ -44,8 +44,8 @@ Synopsis of kprobe_events
+|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address.(**)
NAME=FETCHARG : Set NAME as the argument name of FETCHARG.
FETCHARG:TYPE : Set TYPE as the type of FETCHARG. Currently, basic types
(u8/u16/u32/u64/s8/s16/s32/s64), "string" and bitfield
are supported.
(u8/u16/u32/u64/s8/s16/s32/s64), hexadecimal types
(x8/x16/x32/x64), "string" and bitfield are supported.
(*) only for return probe.
(**) this is useful for fetching a field of data structures.

4
Documentation/trace/uprobetracer.txt
View file

@ -40,8 +40,8 @@ Synopsis of uprobe_tracer
+|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address.(**)
NAME=FETCHARG : Set NAME as the argument name of FETCHARG.
FETCHARG:TYPE : Set TYPE as the type of FETCHARG. Currently, basic types
(u8/u16/u32/u64/s8/s16/s32/s64), "string" and bitfield
are supported.
(u8/u16/u32/u64/s8/s16/s32/s64), hexadecimal types
(x8/x16/x32/x64), "string" and bitfield are supported.
(*) only for return probe.
(**) this is useful for fetching a field of data structures.