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[src/trunk]: src/tests/kernel Add more tests for PT_STEP step[234] in t_ptrac...
details: https://anonhg.NetBSD.org/src/rev/643d7dc6f808
branches: trunk
changeset: 349204:643d7dc6f808
user: kamil <kamil%NetBSD.org@localhost>
date: Tue Nov 29 21:31:45 2016 +0000
description:
Add more tests for PT_STEP step[234] in t_ptrace_wait{,3,4,6,id,pid}
step2:
Verify PT_STEP called twice
step3:
Verify PT_STEP called three times
step4:
Verify PT_STEP called four times
The purpose of these tests is to assert that PT_STEP can be called more
than once and it sill works.
Sponsored by <The NetBSD Foundation>
diffstat:
tests/kernel/t_ptrace_wait.c | 211 ++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 209 insertions(+), 2 deletions(-)
diffs (239 lines):
diff -r b2635b1ba766 -r 643d7dc6f808 tests/kernel/t_ptrace_wait.c
--- a/tests/kernel/t_ptrace_wait.c Tue Nov 29 17:33:48 2016 +0000
+++ b/tests/kernel/t_ptrace_wait.c Tue Nov 29 21:31:45 2016 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_wait.c,v 1.33 2016/11/28 21:37:00 kamil Exp $ */
+/* $NetBSD: t_ptrace_wait.c,v 1.34 2016/11/29 21:31:45 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.33 2016/11/28 21:37:00 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.34 2016/11/29 21:31:45 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -4553,6 +4553,210 @@
}
#endif
+#if defined(PT_STEP)
+ATF_TC(step2);
+ATF_TC_HEAD(step2, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify PT_STEP called twice");
+}
+
+ATF_TC_BODY(step2, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ int happy;
+ int N = 2;
+
+ printf("Before forking process PID=%d\n", getpid());
+ child = atf_utils_fork();
+ if (child == 0) {
+ printf("Before calling PT_TRACE_ME from child %d\n", getpid());
+ FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
+
+ happy = check_happy(999);
+
+ printf("Before raising %s from child\n", strsignal(sigval));
+ FORKEE_ASSERT(raise(sigval) == 0);
+
+ FORKEE_ASSERT_EQ(happy, check_happy(999));
+
+ printf("Before exiting of the child process\n");
+ _exit(exitval);
+ }
+ printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_stopped(status, sigval);
+
+ while (N --> 0) {
+ printf("Before resuming the child process where it left off "
+ "and without signal to be sent (use PT_STEP)\n");
+ ATF_REQUIRE(ptrace(PT_STEP, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0),
+ child);
+
+ validate_status_stopped(status, SIGTRAP);
+ }
+
+ printf("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+#endif
+
+#if defined(PT_STEP)
+ATF_TC(step3);
+ATF_TC_HEAD(step3, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify PT_STEP called three times");
+}
+
+ATF_TC_BODY(step3, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ int happy;
+ int N = 3;
+
+ printf("Before forking process PID=%d\n", getpid());
+ child = atf_utils_fork();
+ if (child == 0) {
+ printf("Before calling PT_TRACE_ME from child %d\n", getpid());
+ FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
+
+ happy = check_happy(999);
+
+ printf("Before raising %s from child\n", strsignal(sigval));
+ FORKEE_ASSERT(raise(sigval) == 0);
+
+ FORKEE_ASSERT_EQ(happy, check_happy(999));
+
+ printf("Before exiting of the child process\n");
+ _exit(exitval);
+ }
+ printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_stopped(status, sigval);
+
+ while (N --> 0) {
+ printf("Before resuming the child process where it left off "
+ "and without signal to be sent (use PT_STEP)\n");
+ ATF_REQUIRE(ptrace(PT_STEP, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0),
+ child);
+
+ validate_status_stopped(status, SIGTRAP);
+ }
+
+ printf("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+#endif
+
+#if defined(PT_STEP)
+ATF_TC(step4);
+ATF_TC_HEAD(step4, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify PT_STEP called four times");
+}
+
+ATF_TC_BODY(step4, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ int happy;
+ int N = 4;
+
+ printf("Before forking process PID=%d\n", getpid());
+ child = atf_utils_fork();
+ if (child == 0) {
+ printf("Before calling PT_TRACE_ME from child %d\n", getpid());
+ FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
+
+ happy = check_happy(999);
+
+ printf("Before raising %s from child\n", strsignal(sigval));
+ FORKEE_ASSERT(raise(sigval) == 0);
+
+ FORKEE_ASSERT_EQ(happy, check_happy(999));
+
+ printf("Before exiting of the child process\n");
+ _exit(exitval);
+ }
+ printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_stopped(status, sigval);
+
+ while (N --> 0) {
+ printf("Before resuming the child process where it left off "
+ "and without signal to be sent (use PT_STEP)\n");
+ ATF_REQUIRE(ptrace(PT_STEP, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0),
+ child);
+
+ validate_status_stopped(status, SIGTRAP);
+ }
+
+ printf("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+#endif
+
#if defined(TWAIT_HAVE_PID)
#define ATF_TP_ADD_TC_HAVE_PID(a,b) ATF_TP_ADD_TC(a,b)
#else
@@ -4649,6 +4853,9 @@
ATF_TP_ADD_TC_HAVE_FPREGS(tp, fpregs2);
ATF_TP_ADD_TC_PT_STEP(tp, step1);
+ ATF_TP_ADD_TC_PT_STEP(tp, step2);
+ ATF_TP_ADD_TC_PT_STEP(tp, step3);
+ ATF_TP_ADD_TC_PT_STEP(tp, step4);
return atf_no_error();
}
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