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-rw-r--r--utest/tracecmd-utest.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/utest/tracecmd-utest.c b/utest/tracecmd-utest.c
index 34fed1e1..6ba2318e 100644
--- a/utest/tracecmd-utest.c
+++ b/utest/tracecmd-utest.c
@@ -131,6 +131,7 @@ static int pipe_it(int *ofd, int *efd, int (*func)(void *),
goto fail;
if (!pid) {
+ char shret[32];
close(obrass[0]);
close(STDOUT_FILENO);
@@ -143,6 +144,23 @@ static int pipe_it(int *ofd, int *efd, int (*func)(void *),
exit(-1);
ret = func(data);
+
+ /*
+ * valgrind triggers its reports when the application
+ * exits. If the application does a fork() and the child
+ * exits, it will still trigger the valgrind report for
+ * all the allocations that were not freed by the parent.
+ *
+ * To prevent valgrind from triggering, do an execl() on
+ * a basic shell that will simply exit with the return value.
+ * This will quiet valgrind from reporting memory that has
+ * been allocated by the parent up to here.
+ */
+ snprintf(shret, 32, "exit %d", ret);
+ execl("/usr/bin/sh", "/usr/bin/sh", "-c", shret, NULL);
+ execl("/bin/sh", "/bin/sh", "-c", shret, NULL);
+
+ /* If the above execl() fails, simply do an exit */
exit(ret);
}