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Add a new ATF test parent_attach_to_its_stopped_child 

Reuse the body of parent_attach_to_its_child for a test attaching to a
stopped child.

This test passes.
This commit is contained in:
kamil 2018-08-13 22:00:45 +00:00
parent d4145d9af3
commit e483a1e648
1 changed files with 41 additions and 10 deletions
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51
tests/lib/libc/sys/t_ptrace_wait.c
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@ -1,4 +1,4 @@
/* $NetBSD: t_ptrace_wait.c,v 1.65 2018/08/13 21:36:55 kamil Exp $ */
/* $NetBSD: t_ptrace_wait.c,v 1.66 2018/08/13 22:00:45 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_ptrace_wait.c,v 1.65 2018/08/13 21:36:55 kamil Exp $");
__RCSID("$NetBSD: t_ptrace_wait.c,v 1.66 2018/08/13 22:00:45 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@ -1368,14 +1368,8 @@ ATF_TC_BODY(unrelated_tracer_sees_terminaton_before_the_parent, tc)
/// ----------------------------------------------------------------------------
ATF_TC(parent_attach_to_its_child);
ATF_TC_HEAD(parent_attach_to_its_child, tc)
{
atf_tc_set_md_var(tc, "descr",
"Assert that tracer parent can PT_ATTACH to its child");
}
ATF_TC_BODY(parent_attach_to_its_child, tc)
static void
parent_attach_to_its_child(bool stopped)
{
struct msg_fds parent_tracee;
const int exitval_tracee = 5;
@ -1392,12 +1386,22 @@ ATF_TC_BODY(parent_attach_to_its_child, tc)
CHILD_FROM_PARENT("Message 1", parent_tracee, msg);
DPRINTF("Parent should now attach to tracee\n");
if (stopped) {
DPRINTF("Stop self PID %d\n", getpid());
SYSCALL_REQUIRE(raise(SIGSTOP) != -1);
}
CHILD_FROM_PARENT("Message 2", parent_tracee, msg);
/* Wait for message from the parent */
_exit(exitval_tracee);
}
PARENT_TO_CHILD("Message 1", parent_tracee, msg);
if (stopped) {
DPRINTF("Await for a stopped tracee PID %d\n", tracee);
await_stopped(tracee);
}
DPRINTF("Before calling PT_ATTACH for tracee %d\n", tracee);
SYSCALL_REQUIRE(ptrace(PT_ATTACH, tracee, NULL, 0) != -1);
@ -1427,6 +1431,32 @@ ATF_TC_BODY(parent_attach_to_its_child, tc)
msg_close(&parent_tracee);
}
ATF_TC(parent_attach_to_its_child);
ATF_TC_HEAD(parent_attach_to_its_child, tc)
{
atf_tc_set_md_var(tc, "descr",
"Assert that tracer parent can PT_ATTACH to its child");
}
ATF_TC_BODY(parent_attach_to_its_child, tc)
{
parent_attach_to_its_child(false);
}
ATF_TC(parent_attach_to_its_stopped_child);
ATF_TC_HEAD(parent_attach_to_its_stopped_child, tc)
{
atf_tc_set_md_var(tc, "descr",
"Assert that tracer parent can PT_ATTACH to its stopped child");
}
ATF_TC_BODY(parent_attach_to_its_stopped_child, tc)
{
parent_attach_to_its_child(true);
}
/// ----------------------------------------------------------------------------
static void
@ -5670,6 +5700,7 @@ ATF_TP_ADD_TCS(tp)
unrelated_tracer_sees_terminaton_before_the_parent);
ATF_TP_ADD_TC(tp, parent_attach_to_its_child);
ATF_TP_ADD_TC(tp, parent_attach_to_its_stopped_child);
ATF_TP_ADD_TC(tp, child_attach_to_its_parent);
ATF_TP_ADD_TC(tp, child_attach_to_its_stopped_parent);