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); 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 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 132 133 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