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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>
This commit is contained in:
kamil 2016-11-29 21:31:45 +00:00
parent 6d100a1021
commit 1843779dc6
1 changed files with 209 additions and 2 deletions
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211
tests/kernel/t_ptrace_wait.c
View File

@ -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 @@ ATF_TC_BODY(step1, tc)
}
#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_TCS(tp)
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();
}