[DTrace-devel] [PATCH 1/2] examples: update the comments in script fcalls.d
eugene.loh at oracle.com
eugene.loh at oracle.com
Thu Aug 14 22:22:48 UTC 2025
From: Ruud van der Pas <ruud.vanderpas at oracle.com>
dtrace/ChangeLog
2025-08-14 Ruud van der Pas <ruud.vanderpas at oracle.com>
* examples/fcalls.d: Modified several comments.
Signed-off-by: Ruud van der Pas <ruud.vanderpas at oracle.com>
---
examples/fcalls.d | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/examples/fcalls.d b/examples/fcalls.d
index 9e42f0041..c332dce40 100755
--- a/examples/fcalls.d
+++ b/examples/fcalls.d
@@ -8,7 +8,7 @@
* sudo ./fcalls.d -c "<name-of-application> [app options]"
*
* DESCRIPTION
- * This program lists the functions executed by the target
+ * This script lists the functions executed by the target
* application. In addition to this, the number of calls to
* each function is printed. This information is given on a
* per-thread basis, as well as aggregated over all threads.
@@ -19,12 +19,14 @@
* duplicate the probe definitions and in the copied lines
* replace a.out by libc.so.
* For example:
- * pid$target:a.out::entry,pid$target:libc.so::entry
- * { ... }
+ * pid$target:a.out::entry,
+ * pid$target:libc.so::entry
+ * { <clauses> }
+ *
* - It is assumed that a function called main is executed.
* If this is not the case, this is not a critical error.
* The first probe is used to capture the name of the executable,
- * but this is not critical. The probe and printf statement
+ * but this is not essential. The probe and printf statement
* can safely be removed, or replaced by a suitable alternative.
*/
@@ -45,9 +47,10 @@ pid$target:a.out:main:entry
{
executable_name = execname;
}
+
/*
* Use 4 aggregations to store the total number of function
- * calls, the counts per function and per thread, both
+ * calls, the counts per function and per thread, both
* seperately and differentiated by thread and function.
*/
pid$target:a.out::entry
@@ -57,6 +60,7 @@ pid$target:a.out::entry
@call_counts_per_thr[tid] = count();
@counts_per_thr_and_function[tid,probefunc] = count();
}
+
/*
* Print the results. Use format strings to create a
* table lay-out.
--
2.47.3
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