tracing/uprobes: Fix documentation of uprobe registration syntax
The uprobe syntax requires an offset after a file path not a symbol. Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Namhyung Kim <namhyung@kernel.org>hifive-unleashed-5.1
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@ -19,15 +19,15 @@ user to calculate the offset of the probepoint in the object.
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Synopsis of uprobe_tracer
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Synopsis of uprobe_tracer
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-------------------------
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-------------------------
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p[:[GRP/]EVENT] PATH:SYMBOL[+offs] [FETCHARGS] : Set a uprobe
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p[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS] : Set a uprobe
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r[:[GRP/]EVENT] PATH:SYMBOL[+offs] [FETCHARGS] : Set a return uprobe (uretprobe)
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r[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS] : Set a return uprobe (uretprobe)
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-:[GRP/]EVENT : Clear uprobe or uretprobe event
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-:[GRP/]EVENT : Clear uprobe or uretprobe event
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GRP : Group name. If omitted, "uprobes" is the default value.
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GRP : Group name. If omitted, "uprobes" is the default value.
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EVENT : Event name. If omitted, the event name is generated based
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EVENT : Event name. If omitted, the event name is generated based
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on SYMBOL+offs.
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on PATH+OFFSET.
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PATH : Path to an executable or a library.
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PATH : Path to an executable or a library.
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SYMBOL[+offs] : Symbol+offset where the probe is inserted.
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OFFSET : Offset where the probe is inserted.
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FETCHARGS : Arguments. Each probe can have up to 128 args.
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FETCHARGS : Arguments. Each probe can have up to 128 args.
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%REG : Fetch register REG
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%REG : Fetch register REG
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@ -211,7 +211,7 @@ end:
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/*
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/*
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* Argument syntax:
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* Argument syntax:
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* - Add uprobe: p|r[:[GRP/]EVENT] PATH:SYMBOL [FETCHARGS]
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* - Add uprobe: p|r[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS]
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*
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*
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* - Remove uprobe: -:[GRP/]EVENT
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* - Remove uprobe: -:[GRP/]EVENT
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*/
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*/
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