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title: Callgraph Tracing
name: callgraph.stp
keywords: simple trace callgraph
description: Print a timed per-thread microsecond-timed nested callgraph.  The first parameter names the function probe points to trace.
test_check: stap -p4 callgraph.stp 'kernel.function("*@fs/proc*.c")'
test_installcheck: stap callgraph.stp 'kernel.function("*@fs/proc*.c")' -c "cat /proc/sys/vm/* || true"