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-rw-r--r--stapprobes.3stap.in4
1 files changed, 3 insertions, 1 deletions
diff --git a/stapprobes.3stap.in b/stapprobes.3stap.in
index 52de6886..14591acb 100644
--- a/stapprobes.3stap.in
+++ b/stapprobes.3stap.in
@@ -26,7 +26,8 @@ allows a breakdown of the event namespace into parts, somewhat like
the Domain Name System does on the Internet. Each component
identifier may be parametrized by a string or number literal, with a
syntax like a function call. A component may include a "*" character,
-to expand to a set of matching probe points. Probe aliases likewise
+to expand to a set of matching probe points. It may also include "**"
+to match multiple sequential components at once. Probe aliases likewise
expand to other probe points. Each and every resulting probe point is
normally resolved to some low-level system instrumentation facility
(e.g., a kprobe address, marker, or a timer configuration), otherwise
@@ -61,6 +62,7 @@ kernel.function("foo").return
process("/bin/vi").statement(0x2222)
end
syscall.*
+sys**open
kernel.function("no_such_function") ?
module("awol").function("no_such_function") !
signal.*? if (switch)