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      1 /*	$NetBSD: t_ptrace_amd64_wait.h,v 1.13 2025/05/02 02:24:32 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2016, 2017, 2018, 2019 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 #if defined(__x86_64__)
     30 
     31 /// ----------------------------------------------------------------------------
     32 
     33 ATF_TC(x86_64_regs1);
     34 ATF_TC_HEAD(x86_64_regs1, tc)
     35 {
     36 	atf_tc_set_md_var(tc, "descr",
     37 	    "Call PT_GETREGS and iterate over General Purpose registers");
     38 }
     39 
     40 ATF_TC_BODY(x86_64_regs1, tc)
     41 {
     42 	const int exitval = 5;
     43 	const int sigval = SIGSTOP;
     44 	pid_t child, wpid;
     45 #if defined(TWAIT_HAVE_STATUS)
     46 	int status;
     47 #endif
     48 	struct reg r;
     49 
     50 	DPRINTF("Before forking process PID=%d\n", getpid());
     51 	SYSCALL_REQUIRE((child = fork()) != -1);
     52 	if (child == 0) {
     53 		DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid());
     54 		FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
     55 
     56 		DPRINTF("Before raising %s from child\n", strsignal(sigval));
     57 		FORKEE_ASSERT(raise(sigval) == 0);
     58 
     59 		DPRINTF("Before exiting of the child process\n");
     60 		_exit(exitval);
     61 	}
     62 	DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
     63 
     64 	DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
     65 	TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
     66 
     67 	validate_status_stopped(status, sigval);
     68 
     69 	DPRINTF("Call GETREGS for the child process\n");
     70 	SYSCALL_REQUIRE(ptrace(PT_GETREGS, child, &r, 0) != -1);
     71 
     72 	DPRINTF("RAX=%#" PRIxREGISTER "\n", r.regs[_REG_RAX]);
     73 	DPRINTF("RBX=%#" PRIxREGISTER "\n", r.regs[_REG_RBX]);
     74 	DPRINTF("RCX=%#" PRIxREGISTER "\n", r.regs[_REG_RCX]);
     75 	DPRINTF("RDX=%#" PRIxREGISTER "\n", r.regs[_REG_RDX]);
     76 
     77 	DPRINTF("RDI=%#" PRIxREGISTER "\n", r.regs[_REG_RDI]);
     78 	DPRINTF("RSI=%#" PRIxREGISTER "\n", r.regs[_REG_RSI]);
     79 
     80 	DPRINTF("GS=%#" PRIxREGISTER "\n", r.regs[_REG_GS]);
     81 	DPRINTF("FS=%#" PRIxREGISTER "\n", r.regs[_REG_FS]);
     82 	DPRINTF("ES=%#" PRIxREGISTER "\n", r.regs[_REG_ES]);
     83 	DPRINTF("DS=%#" PRIxREGISTER "\n", r.regs[_REG_DS]);
     84 	DPRINTF("CS=%#" PRIxREGISTER "\n", r.regs[_REG_CS]);
     85 	DPRINTF("SS=%#" PRIxREGISTER "\n", r.regs[_REG_SS]);
     86 
     87 	DPRINTF("RSP=%#" PRIxREGISTER "\n", r.regs[_REG_RSP]);
     88 	DPRINTF("RIP=%#" PRIxREGISTER "\n", r.regs[_REG_RIP]);
     89 
     90 	DPRINTF("RFLAGS=%#" PRIxREGISTER "\n", r.regs[_REG_RFLAGS]);
     91 
     92 	DPRINTF("R8=%#" PRIxREGISTER "\n", r.regs[_REG_R8]);
     93 	DPRINTF("R9=%#" PRIxREGISTER "\n", r.regs[_REG_R9]);
     94 	DPRINTF("R10=%#" PRIxREGISTER "\n", r.regs[_REG_R10]);
     95 	DPRINTF("R11=%#" PRIxREGISTER "\n", r.regs[_REG_R11]);
     96 	DPRINTF("R12=%#" PRIxREGISTER "\n", r.regs[_REG_R12]);
     97 	DPRINTF("R13=%#" PRIxREGISTER "\n", r.regs[_REG_R13]);
     98 	DPRINTF("R14=%#" PRIxREGISTER "\n", r.regs[_REG_R14]);
     99 	DPRINTF("R15=%#" PRIxREGISTER "\n", r.regs[_REG_R15]);
    100 
    101 	DPRINTF("Before resuming the child process where it left off and "
    102 	    "without signal to be sent\n");
    103 	SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
    104 
    105 	DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
    106 	TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
    107 
    108 	validate_status_exited(status, exitval);
    109 
    110 	DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
    111 	TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
    112 }
    113 
    114 /// ----------------------------------------------------------------------------
    115 
    116 #define ATF_TP_ADD_TCS_PTRACE_WAIT_AMD64() \
    117 	ATF_TP_ADD_TC_HAVE_GPREGS(tp, x86_64_regs1);
    118 #else
    119 #define ATF_TP_ADD_TCS_PTRACE_WAIT_AMD64()
    120 #endif
    121