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src: Merge code in tests: fork1 and vfork1 (ATF t_ptrace_wait*)
details: https://anonhg.NetBSD.org/src/rev/eded288330fc
branches: trunk
changeset: 318000:eded288330fc
user: kamil <kamil%NetBSD.org@localhost>
date: Tue Apr 10 00:09:31 2018 +0000
description:
Merge code in tests: fork1 and vfork1 (ATF t_ptrace_wait*)
Marge bodies of two tests into the same function.
Add few checks for regular fork or not (vfork).
Sponsored by <The NetBSD Foundation>
diffstat:
tests/lib/libc/sys/t_ptrace_wait.c | 170 ++++++++----------------------------
1 files changed, 38 insertions(+), 132 deletions(-)
diffs (247 lines):
diff -r 82b0394d89c4 -r eded288330fc tests/lib/libc/sys/t_ptrace_wait.c
--- a/tests/lib/libc/sys/t_ptrace_wait.c Mon Apr 09 22:26:15 2018 +0000
+++ b/tests/lib/libc/sys/t_ptrace_wait.c Tue Apr 10 00:09:31 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_wait.c,v 1.27 2018/04/09 15:45:16 kamil Exp $ */
+/* $NetBSD: t_ptrace_wait.c,v 1.28 2018/04/10 00:09:31 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.27 2018/04/09 15:45:16 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.28 2018/04/10 00:09:31 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -1322,15 +1322,8 @@
}
#if defined(TWAIT_HAVE_PID)
-ATF_TC(fork1);
-ATF_TC_HEAD(fork1, tc)
-{
- atf_tc_set_md_var(tc, "descr",
- "Verify that fork(2) is intercepted by ptrace(2) with EVENT_MASK "
- "set to PTRACE_FORK");
-}
-
-ATF_TC_BODY(fork1, tc)
+static void
+fork_test(bool regular)
{
const int exitval = 5;
const int exitval2 = 15;
@@ -1344,6 +1337,10 @@
ptrace_event_t event;
const int elen = sizeof(event);
+ if (!regular) {
+ atf_tc_expect_fail("PR kern/51630");
+ }
+
DPRINTF("Before forking process PID=%d\n", getpid());
SYSCALL_REQUIRE((child = fork()) != -1);
if (child == 0) {
@@ -1353,7 +1350,7 @@
DPRINTF("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
- FORKEE_ASSERT((child2 = fork()) != -1);
+ FORKEE_ASSERT((child2 = (regular ? fork() : vfork())) != -1);
if (child2 == 0)
_exit(exitval2);
@@ -1373,16 +1370,18 @@
validate_status_stopped(status, sigval);
- DPRINTF("Enable PTRACE_FORK in EVENT_MASK for the child %d\n", child);
- event.pe_set_event = PTRACE_FORK;
+ DPRINTF("Enable PTRACE_%sFORK in EVENT_MASK for the child %d\n",
+ regular ? "" : "V", child);
+ event.pe_set_event = regular ? PTRACE_FORK : PTRACE_VFORK;
SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1);
DPRINTF("Before resuming the child process where it left off and "
"without signal to be sent\n");
DPRINTF("We expect two SIGTRAP events, for child %d (TRAP_CHLD, "
- "pe_report_event=PTRACE_FORK, state.pe_other_pid=child2) and "
- "for child2 (TRAP_CHLD, pe_report_event=PTRACE_FORK, "
- "state.pe_other_pid=child)\n", child);
+ "pe_report_event=PTRACE_%sFORK, state.pe_other_pid=child2) and "
+ "for child2 (TRAP_CHLD, pe_report_event=PTRACE_%sFORK, "
+ "state.pe_other_pid=child)\n", child, regular ? "" : "V",
+ regular ? "" : "V");
SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, child);
@@ -1391,10 +1390,12 @@
validate_status_stopped(status, SIGTRAP);
SYSCALL_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1);
- ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_FORK);
+ ATF_REQUIRE_EQ(state.pe_report_event,
+ regular ? PTRACE_FORK : PTRACE_VFORK);
child2 = state.pe_other_pid;
- DPRINTF("Reported PTRACE_FORK event with forkee %d\n", child2);
+ DPRINTF("Reported PTRACE_%sFORK event with forkee %d\n",
+ regular ? "" : "V", child2);
DPRINTF("Before calling %s() for the forkee %d of the child %d\n",
TWAIT_FNAME, child2, child);
@@ -1404,7 +1405,8 @@
validate_status_stopped(status, SIGTRAP);
SYSCALL_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1);
- ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_FORK);
+ ATF_REQUIRE_EQ(state.pe_report_event,
+ regular ? PTRACE_FORK : PTRACE_VFORK);
ATF_REQUIRE_EQ(state.pe_other_pid, child);
DPRINTF("Before resuming the forkee process where it left off and "
@@ -1447,6 +1449,20 @@
TWAIT_FNAME);
TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
}
+
+ATF_TC(fork1);
+ATF_TC_HEAD(fork1, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify that fork(2) is intercepted by ptrace(2) with EVENT_MASK "
+ "set to PTRACE_FORK");
+}
+
+ATF_TC_BODY(fork1, tc)
+{
+
+ fork_test(true);
+}
#endif
ATF_TC(fork2);
@@ -1538,118 +1554,8 @@
ATF_TC_BODY(vfork1, tc)
{
- const int exitval = 5;
- const int exitval2 = 15;
- const int sigval = SIGSTOP;
- pid_t child, child2, wpid;
-#if defined(TWAIT_HAVE_STATUS)
- int status;
-#endif
- ptrace_state_t state;
- const int slen = sizeof(state);
- ptrace_event_t event;
- const int elen = sizeof(event);
-
- atf_tc_expect_fail("PR kern/51630");
-
- DPRINTF("Before forking process PID=%d\n", getpid());
- SYSCALL_REQUIRE((child = fork()) != -1);
- if (child == 0) {
- DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
- FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
-
- DPRINTF("Before raising %s from child\n", strsignal(sigval));
- FORKEE_ASSERT(raise(sigval) == 0);
-
- FORKEE_ASSERT((child2 = vfork()) != -1);
-
- if (child2 == 0)
- _exit(exitval2);
-
- FORKEE_REQUIRE_SUCCESS
- (wpid = TWAIT_GENERIC(child2, &status, 0), child2);
-
- forkee_status_exited(status, exitval2);
-
- DPRINTF("Before exiting of the child process\n");
- _exit(exitval);
- }
- DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
-
- DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
- TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
-
- validate_status_stopped(status, sigval);
-
- DPRINTF("Enable PTRACE_VFORK in EVENT_MASK for the child %d\n", child);
- event.pe_set_event = PTRACE_VFORK;
- SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1 || errno == ENOTSUP);
-
- DPRINTF("Before resuming the child process where it left off and "
- "without signal to be sent\n");
- SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
-
- DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, child);
- TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
-
- validate_status_stopped(status, SIGTRAP);
-
- SYSCALL_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1);
- ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK);
-
- child2 = state.pe_other_pid;
- DPRINTF("Reported PTRACE_VFORK event with forkee %d\n", child2);
-
- DPRINTF("Before calling %s() for the forkee %d of the child %d\n",
- TWAIT_FNAME, child2, child);
- TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0),
- child2);
-
- validate_status_stopped(status, SIGTRAP);
-
- SYSCALL_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1);
- ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK);
- ATF_REQUIRE_EQ(state.pe_other_pid, child);
-
- DPRINTF("Before resuming the forkee process where it left off and "
- "without signal to be sent\n");
- SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1);
-
- DPRINTF("Before resuming the child process where it left off and "
- "without signal to be sent\n");
- SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
-
- DPRINTF("Before calling %s() for the forkee - expected exited\n",
- TWAIT_FNAME);
- TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0),
- child2);
-
- validate_status_exited(status, exitval2);
-
- DPRINTF("Before calling %s() for the forkee - expected no process\n",
- TWAIT_FNAME);
- TWAIT_REQUIRE_FAILURE(ECHILD,
- wpid = TWAIT_GENERIC(child2, &status, 0));
-
- DPRINTF("Before calling %s() for the child - expected stopped "
- "SIGCHLD\n", TWAIT_FNAME);
- TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
-
- validate_status_stopped(status, SIGCHLD);
-
- DPRINTF("Before resuming the child process where it left off and "
- "without signal to be sent\n");
- SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
-
- DPRINTF("Before calling %s() for the child - expected exited\n",
- TWAIT_FNAME);
- TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
-
- validate_status_exited(status, exitval);
-
- DPRINTF("Before calling %s() for the child - expected no process\n",
- TWAIT_FNAME);
- TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+
+ fork_test(false);
}
#endif
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