1 /* $NetBSD: t_ptrace_wait.c,v 1.2 2017/01/13 21:30:41 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2016 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __RCSID("$NetBSD: t_ptrace_wait.c,v 1.2 2017/01/13 21:30:41 christos Exp $");
31
32 #include <sys/param.h>
33 #include <sys/types.h>
34 #include <sys/ptrace.h>
35 #include <sys/resource.h>
36 #include <sys/stat.h>
37 #include <sys/sysctl.h>
38 #include <sys/wait.h>
39 #include <machine/reg.h>
40 #include <err.h>
41 #include <errno.h>
42 #include <sched.h>
43 #include <signal.h>
44 #include <stdint.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <strings.h>
48 #include <unistd.h>
49
50 #include <atf-c.h>
51
52 #include "h_macros.h"
53
54 #include "../../t_ptrace_wait.h"
55
56
57 #if defined(HAVE_GPREGS)
58 ATF_TC(regs1);
ATF_TC_HEAD(regs1,tc)59 ATF_TC_HEAD(regs1, tc)
60 {
61 atf_tc_set_md_var(tc, "descr",
62 "Call PT_GETREGS and iterate over General Purpose registers");
63 }
64
ATF_TC_BODY(regs1,tc)65 ATF_TC_BODY(regs1, tc)
66 {
67 const int exitval = 5;
68 const int sigval = SIGSTOP;
69 pid_t child, wpid;
70 #if defined(TWAIT_HAVE_STATUS)
71 int status;
72 #endif
73 struct reg r;
74
75 printf("Before forking process PID=%d\n", getpid());
76 ATF_REQUIRE((child = fork()) != -1);
77 if (child == 0) {
78 printf("Before calling PT_TRACE_ME from child %d\n", getpid());
79 FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
80
81 printf("Before raising %s from child\n", strsignal(sigval));
82 FORKEE_ASSERT(raise(sigval) == 0);
83
84 printf("Before exiting of the child process\n");
85 _exit(exitval);
86 }
87 printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
88
89 printf("Before calling %s() for the child\n", TWAIT_FNAME);
90 TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
91
92 validate_status_stopped(status, sigval);
93
94 printf("Call GETREGS for the child process\n");
95 ATF_REQUIRE(ptrace(PT_GETREGS, child, &r, 0) != -1);
96
97 printf("EAX=%#" PRIxREGISTER "\n", r.r_eax);
98 printf("EBX=%#" PRIxREGISTER "\n", r.r_ebx);
99 printf("ECX=%#" PRIxREGISTER "\n", r.r_ecx);
100 printf("EDX=%#" PRIxREGISTER "\n", r.r_edx);
101
102 printf("ESP=%#" PRIxREGISTER "\n", r.r_esp);
103 printf("EBP=%#" PRIxREGISTER "\n", r.r_ebp);
104
105 printf("ESI=%#" PRIxREGISTER "\n", r.r_esi);
106 printf("EDI=%#" PRIxREGISTER "\n", r.r_edi);
107
108 printf("EIP=%#" PRIxREGISTER "\n", r.r_eip);
109
110 printf("EFLAGS=%#" PRIxREGISTER "\n", r.r_eflags);
111
112 printf("CS=%#" PRIxREGISTER "\n", r.r_cs);
113 printf("SS=%#" PRIxREGISTER "\n", r.r_ss);
114 printf("DS=%#" PRIxREGISTER "\n", r.r_ds);
115 printf("ES=%#" PRIxREGISTER "\n", r.r_es);
116 printf("FS=%#" PRIxREGISTER "\n", r.r_fs);
117 printf("GS=%#" PRIxREGISTER "\n", r.r_gs);
118
119 printf("Before resuming the child process where it left off and "
120 "without signal to be sent\n");
121 ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
122
123 printf("Before calling %s() for the child\n", TWAIT_FNAME);
124 TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
125
126 validate_status_exited(status, exitval);
127
128 printf("Before calling %s() for the child\n", TWAIT_FNAME);
129 TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
130 }
131 #endif
132
ATF_TP_ADD_TCS(tp)133 ATF_TP_ADD_TCS(tp)
134 {
135 setvbuf(stdout, NULL, _IONBF, 0);
136 setvbuf(stderr, NULL, _IONBF, 0);
137
138 ATF_TP_ADD_TC_HAVE_GPREGS(tp, regs1);
139
140 return atf_no_error();
141 }
142