Add new tests dbregs_dr[0123]_trap_code in arch/amd64

Add new tests:
 - dbregs_dr0_trap_code
 - dbregs_dr1_trap_code
 - dbregs_dr2_trap_code
 - dbregs_dr3_trap_code

This is the final set of tests for trap types that are supposed to be
supported by all amd64 CPUs.

Traps for code (instruction) execution must be set to 1 byte, otherwise
they are undefined. x86 code traps must point to the first byte of an
instruction.

Sponsored by <The NetBSD Foundation>
This commit is contained in:
kamil 2017-02-20 02:56:03 +00:00
parent b4c0f63794
commit 6a2fda314b

View File

@ -1,4 +1,4 @@
/* $NetBSD: t_ptrace_wait.c,v 1.18 2017/02/20 01:34:53 kamil Exp $ */
/* $NetBSD: t_ptrace_wait.c,v 1.19 2017/02/20 02:56:03 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_ptrace_wait.c,v 1.18 2017/02/20 01:34:53 kamil Exp $");
__RCSID("$NetBSD: t_ptrace_wait.c,v 1.19 2017/02/20 02:56:03 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@ -5986,6 +5986,558 @@ ATF_TC_BODY(dbregs_dr3_trap_variable_readwrite_read_4bytes, tc)
}
#endif
#if defined(HAVE_DBREGS)
ATF_TC(dbregs_dr0_trap_code);
ATF_TC_HEAD(dbregs_dr0_trap_code, tc)
{
atf_tc_set_md_var(tc, "descr",
"Verify that setting trap with DR0 triggers SIGTRAP "
"(break on code execution trap)");
}
ATF_TC_BODY(dbregs_dr0_trap_code, tc)
{
const int exitval = 5;
const int sigval = SIGSTOP;
pid_t child, wpid;
#if defined(TWAIT_HAVE_STATUS)
int status;
#endif
struct dbreg r1;
struct dbreg r2;
/* Number of available CPU Debug Registers on AMD64 */
const size_t len = 16;
size_t i;
volatile int watchme = 1;
union u dr7;
struct ptrace_siginfo info;
memset(&info, 0, sizeof(info));
dr7.raw = 0;
dr7.bits.global_dr0_breakpoint = 1;
dr7.bits.condition_dr0 = 0; /* 0b00 -- break on code execution */
dr7.bits.len_dr0 = 0; /* 0b00 -- 1 byte */
printf("Assert that known number of Debug Registers (%zu) is valid\n",
len);
ATF_REQUIRE_EQ(__arraycount(r1.dr), len);
ATF_REQUIRE_EQ(__arraycount(r2.dr), len);
printf("Before forking process PID=%d\n", getpid());
ATF_REQUIRE((child = fork()) != -1);
if (child == 0) {
printf("Before calling PT_TRACE_ME from child %d\n", getpid());
FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
printf("check_happy(%d)=%d\n", watchme, check_happy(watchme));
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
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);
printf("Call GETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1);
printf("State of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
r1.dr[0] = (long)(intptr_t)check_happy;
printf("Set DR0 (r1.dr[0]) to new value %#lx\n", r1.dr[0]);
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("New state of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, SIGTRAP);
printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
printf("Signal traced to lwpid=%d\n", info.psi_lwpid);
printf("Signal properties: si_signo=%#x si_code=%#x si_errno=%#x\n",
info.psi_siginfo.si_signo, info.psi_siginfo.si_code,
info.psi_siginfo.si_errno);
printf("Before checking siginfo_t\n");
ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGTRAP);
ATF_REQUIRE_EQ(info.psi_siginfo.si_code, TRAP_DBREG);
printf("Remove code trap from check_happy=%p\n", check_happy);
dr7.bits.global_dr0_breakpoint = 0;
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, sigval);
printf("Call GETDBREGS for the child process (r2)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, 0) != -1);
printf("Assert that (r1) and (r2) are the same\n");
ATF_REQUIRE(memcmp(&r1, &r2, len) == 0);
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(HAVE_DBREGS)
ATF_TC(dbregs_dr1_trap_code);
ATF_TC_HEAD(dbregs_dr1_trap_code, tc)
{
atf_tc_set_md_var(tc, "descr",
"Verify that setting trap with DR1 triggers SIGTRAP "
"(break on code execution trap)");
}
ATF_TC_BODY(dbregs_dr1_trap_code, tc)
{
const int exitval = 5;
const int sigval = SIGSTOP;
pid_t child, wpid;
#if defined(TWAIT_HAVE_STATUS)
int status;
#endif
struct dbreg r1;
struct dbreg r2;
/* Number of available CPU Debug Registers on AMD64 */
const size_t len = 16;
size_t i;
volatile int watchme = 1;
union u dr7;
struct ptrace_siginfo info;
memset(&info, 0, sizeof(info));
dr7.raw = 0;
dr7.bits.global_dr1_breakpoint = 1;
dr7.bits.condition_dr1 = 0; /* 0b00 -- break on code execution */
dr7.bits.len_dr1 = 0; /* 0b00 -- 1 byte */
printf("Assert that known number of Debug Registers (%zu) is valid\n",
len);
ATF_REQUIRE_EQ(__arraycount(r1.dr), len);
ATF_REQUIRE_EQ(__arraycount(r2.dr), len);
printf("Before forking process PID=%d\n", getpid());
ATF_REQUIRE((child = fork()) != -1);
if (child == 0) {
printf("Before calling PT_TRACE_ME from child %d\n", getpid());
FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
printf("check_happy(%d)=%d\n", watchme, check_happy(watchme));
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
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);
printf("Call GETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1);
printf("State of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
r1.dr[1] = (long)(intptr_t)check_happy;
printf("Set DR1 (r1.dr[1]) to new value %#lx\n", r1.dr[1]);
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("New state of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, SIGTRAP);
printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
printf("Signal traced to lwpid=%d\n", info.psi_lwpid);
printf("Signal properties: si_signo=%#x si_code=%#x si_errno=%#x\n",
info.psi_siginfo.si_signo, info.psi_siginfo.si_code,
info.psi_siginfo.si_errno);
printf("Before checking siginfo_t\n");
ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGTRAP);
ATF_REQUIRE_EQ(info.psi_siginfo.si_code, TRAP_DBREG);
printf("Remove code trap from check_happy=%p\n", check_happy);
dr7.bits.global_dr1_breakpoint = 0;
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, sigval);
printf("Call GETDBREGS for the child process (r2)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, 0) != -1);
printf("Assert that (r1) and (r2) are the same\n");
ATF_REQUIRE(memcmp(&r1, &r2, len) == 0);
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(HAVE_DBREGS)
ATF_TC(dbregs_dr2_trap_code);
ATF_TC_HEAD(dbregs_dr2_trap_code, tc)
{
atf_tc_set_md_var(tc, "descr",
"Verify that setting trap with DR2 triggers SIGTRAP "
"(break on code execution trap)");
}
ATF_TC_BODY(dbregs_dr2_trap_code, tc)
{
const int exitval = 5;
const int sigval = SIGSTOP;
pid_t child, wpid;
#if defined(TWAIT_HAVE_STATUS)
int status;
#endif
struct dbreg r1;
struct dbreg r2;
/* Number of available CPU Debug Registers on AMD64 */
const size_t len = 16;
size_t i;
volatile int watchme = 1;
union u dr7;
struct ptrace_siginfo info;
memset(&info, 0, sizeof(info));
dr7.raw = 0;
dr7.bits.global_dr2_breakpoint = 1;
dr7.bits.condition_dr2 = 0; /* 0b00 -- break on code execution */
dr7.bits.len_dr2 = 0; /* 0b00 -- 1 byte */
printf("Assert that known number of Debug Registers (%zu) is valid\n",
len);
ATF_REQUIRE_EQ(__arraycount(r1.dr), len);
ATF_REQUIRE_EQ(__arraycount(r2.dr), len);
printf("Before forking process PID=%d\n", getpid());
ATF_REQUIRE((child = fork()) != -1);
if (child == 0) {
printf("Before calling PT_TRACE_ME from child %d\n", getpid());
FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
printf("check_happy(%d)=%d\n", watchme, check_happy(watchme));
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
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);
printf("Call GETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1);
printf("State of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
r1.dr[2] = (long)(intptr_t)check_happy;
printf("Set DR2 (r1.dr[2]) to new value %#lx\n", r1.dr[2]);
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("New state of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, SIGTRAP);
printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
printf("Signal traced to lwpid=%d\n", info.psi_lwpid);
printf("Signal properties: si_signo=%#x si_code=%#x si_errno=%#x\n",
info.psi_siginfo.si_signo, info.psi_siginfo.si_code,
info.psi_siginfo.si_errno);
printf("Before checking siginfo_t\n");
ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGTRAP);
ATF_REQUIRE_EQ(info.psi_siginfo.si_code, TRAP_DBREG);
printf("Remove code trap from check_happy=%p\n", check_happy);
dr7.bits.global_dr2_breakpoint = 0;
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, sigval);
printf("Call GETDBREGS for the child process (r2)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, 0) != -1);
printf("Assert that (r1) and (r2) are the same\n");
ATF_REQUIRE(memcmp(&r1, &r2, len) == 0);
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(HAVE_DBREGS)
ATF_TC(dbregs_dr3_trap_code);
ATF_TC_HEAD(dbregs_dr3_trap_code, tc)
{
atf_tc_set_md_var(tc, "descr",
"Verify that setting trap with DR3 triggers SIGTRAP "
"(break on code execution trap)");
}
ATF_TC_BODY(dbregs_dr3_trap_code, tc)
{
const int exitval = 5;
const int sigval = SIGSTOP;
pid_t child, wpid;
#if defined(TWAIT_HAVE_STATUS)
int status;
#endif
struct dbreg r1;
struct dbreg r2;
/* Number of available CPU Debug Registers on AMD64 */
const size_t len = 16;
size_t i;
volatile int watchme = 1;
union u dr7;
struct ptrace_siginfo info;
memset(&info, 0, sizeof(info));
dr7.raw = 0;
dr7.bits.global_dr3_breakpoint = 1;
dr7.bits.condition_dr3 = 0; /* 0b00 -- break on code execution */
dr7.bits.len_dr3 = 0; /* 0b00 -- 1 byte */
printf("Assert that known number of Debug Registers (%zu) is valid\n",
len);
ATF_REQUIRE_EQ(__arraycount(r1.dr), len);
ATF_REQUIRE_EQ(__arraycount(r2.dr), len);
printf("Before forking process PID=%d\n", getpid());
ATF_REQUIRE((child = fork()) != -1);
if (child == 0) {
printf("Before calling PT_TRACE_ME from child %d\n", getpid());
FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
printf("check_happy(%d)=%d\n", watchme, check_happy(watchme));
printf("Before raising %s from child\n", strsignal(sigval));
FORKEE_ASSERT(raise(sigval) == 0);
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);
printf("Call GETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r1, 0) != -1);
printf("State of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
r1.dr[3] = (long)(intptr_t)check_happy;
printf("Set DR3 (r1.dr[3]) to new value %#lx\n", r1.dr[3]);
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("New state of the debug registers (r1):\n");
for (i = 0; i < __arraycount(r1.dr); i++)
printf("r1[%zu]=%#lx\n", i, r1.dr[i]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, SIGTRAP);
printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
printf("Signal traced to lwpid=%d\n", info.psi_lwpid);
printf("Signal properties: si_signo=%#x si_code=%#x si_errno=%#x\n",
info.psi_siginfo.si_signo, info.psi_siginfo.si_code,
info.psi_siginfo.si_errno);
printf("Before checking siginfo_t\n");
ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGTRAP);
ATF_REQUIRE_EQ(info.psi_siginfo.si_code, TRAP_DBREG);
printf("Remove code trap from check_happy=%p\n", check_happy);
dr7.bits.global_dr3_breakpoint = 0;
r1.dr[7] = dr7.raw;
printf("Set DR7 (r1.dr[7]) to new value %#lx\n", r1.dr[7]);
printf("Call SETDBREGS for the child process (r1)\n");
ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r1, 0) != -1);
printf("Call CONTINUE for the child process\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_stopped(status, sigval);
printf("Call GETDBREGS for the child process (r2)\n");
ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r2, 0) != -1);
printf("Assert that (r1) and (r2) are the same\n");
ATF_REQUIRE(memcmp(&r1, &r2, len) == 0);
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
ATF_TP_ADD_TCS(tp)
{
setvbuf(stdout, NULL, _IONBF, 0);
@ -6055,5 +6607,10 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr2_trap_variable_readwrite_read_4bytes);
ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr3_trap_variable_readwrite_read_4bytes);
ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr0_trap_code);
ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr1_trap_code);
ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr2_trap_code);
ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs_dr3_trap_code);
return atf_no_error();
}