Module Name: src
Committed By: kamil
Date: Thu Dec 15 12:15:20 UTC 2016
Modified Files:
src/tests/kernel/arch/amd64: t_ptrace_wait.c
Log Message:
Add ATF tests for hardware assisted watchpoints on amd64
Addedd tests:
- watchpoint_count
- watchpoint_read
- watchpoint_write_unmodified
- watchpoint_trap_code[0123]
- watchpoint_trap_data_write[0123]
- watchpoint_trap_data_rw[0123]
These code will be reused later for i386 and moved to a common place like
tests/kernel/arch/x86.
These tests are x86 specific only. The same API but different private
ptrace_watchpoint MD part has to be used on other ports.
All tests pass on amd64.
Sponsored by <The NetBSD Foundation>
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/tests/kernel/arch/amd64/t_ptrace_wait.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/kernel/arch/amd64/t_ptrace_wait.c
diff -u src/tests/kernel/arch/amd64/t_ptrace_wait.c:1.7 src/tests/kernel/arch/amd64/t_ptrace_wait.c:1.8
--- src/tests/kernel/arch/amd64/t_ptrace_wait.c:1.7 Tue Dec 13 13:09:00 2016
+++ src/tests/kernel/arch/amd64/t_ptrace_wait.c Thu Dec 15 12:15:20 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_wait.c,v 1.7 2016/12/13 13:09:00 kamil Exp $ */
+/* $NetBSD: t_ptrace_wait.c,v 1.8 2016/12/15 12:15:20 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.7 2016/12/13 13:09:00 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.8 2016/12/15 12:15:20 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -37,6 +37,7 @@ __RCSID("$NetBSD: t_ptrace_wait.c,v 1.7
#include <sys/sysctl.h>
#include <sys/wait.h>
#include <machine/reg.h>
+#include <x86/dbregs.h>
#include <err.h>
#include <errno.h>
#include <sched.h>
@@ -137,6 +138,1229 @@ ATF_TC_BODY(regs1, tc)
}
#endif
+#if defined(__HAVE_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_count);
+ATF_TC_HEAD(watchpoint_count, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and assert four available watchpoints");
+}
+
+ATF_TC_BODY(watchpoint_count, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ int N;
+
+ 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("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 GETREGS for the child process\n");
+ ATF_REQUIRE((N = ptrace(PT_COUNT_WATCHPOINTS, child, NULL, 0)) != -1);
+ printf("Reported %d watchpoints\n", N);
+
+ ATF_REQUIRE_EQ_MSG(N, 4, "Expected 4 hw watchpoints - got %d", N);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_read);
+ATF_TC_HEAD(watchpoint_read, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and assert four available watchpoints");
+}
+
+ATF_TC_BODY(watchpoint_read, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ int i, N;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+
+ 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("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 GETREGS for the child process\n");
+ ATF_REQUIRE((N = ptrace(PT_COUNT_WATCHPOINTS, child, NULL, 0)) != -1);
+
+ ATF_REQUIRE_EQ_MSG(N, 4, "Expected 4 hw watchpoints - got %d", N);
+
+ for (i = 0; i < N; i++) {
+ printf("Before reading watchpoint %d\n", i);
+ pw.pw_index = i;
+ ATF_REQUIRE(ptrace(PT_READ_WATCHPOINT, child, &pw, len) != -1);
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+ }
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_write_unmodified);
+ATF_TC_HEAD(watchpoint_write_unmodified, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and assert functional write of "
+ "unmodified data");
+}
+
+ATF_TC_BODY(watchpoint_write_unmodified, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ int i, N;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+
+ 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("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 GETREGS for the child process\n");
+ ATF_REQUIRE((N = ptrace(PT_COUNT_WATCHPOINTS, child, NULL, 0)) != -1);
+
+ ATF_REQUIRE_EQ_MSG(N, 4, "Expected 4 hw watchpoints - got %d", N);
+
+ for (i = 0; i < N; i++) {
+ printf("Before reading watchpoint %d\n", i);
+ pw.pw_index = i;
+ ATF_REQUIRE(ptrace(PT_READ_WATCHPOINT, child, &pw, len) != -1);
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d (unmodified)\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len)
+ != -1);
+ }
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_code0);
+ATF_TC_HEAD(watchpoint_trap_code0, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test code trap with watchpoint 0");
+}
+
+ATF_TC_BODY(watchpoint_trap_code0, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 0;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_lwpid = 0;
+ pw.pw_md.md_address = (void *)check_happy;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_EXECUTION;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ pw.pw_md.md_address = NULL;
+ printf("Before writing watchpoint %d (disable it)\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_code1);
+ATF_TC_HEAD(watchpoint_trap_code1, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test code trap with watchpoint 1");
+}
+
+ATF_TC_BODY(watchpoint_trap_code1, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 1;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_lwpid = 0;
+ pw.pw_md.md_address = (void *)check_happy;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_EXECUTION;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ pw.pw_md.md_address = NULL;
+ printf("Before writing watchpoint %d (disable it)\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_code2);
+ATF_TC_HEAD(watchpoint_trap_code2, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test code trap with watchpoint 2");
+}
+
+ATF_TC_BODY(watchpoint_trap_code2, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 2;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_lwpid = 0;
+ pw.pw_md.md_address = (void *)check_happy;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_EXECUTION;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ pw.pw_md.md_address = NULL;
+ printf("Before writing watchpoint %d (disable it)\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_code3);
+ATF_TC_HEAD(watchpoint_trap_code3, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test code trap with watchpoint 3");
+}
+
+ATF_TC_BODY(watchpoint_trap_code3, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 3;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_lwpid = 0;
+ pw.pw_md.md_address = (void *)check_happy;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_EXECUTION;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ pw.pw_md.md_address = NULL;
+ printf("Before writing watchpoint %d (disable it)\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_write0);
+ATF_TC_HEAD(watchpoint_trap_data_write0, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 0");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_write0, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 0;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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);
+
+ ++watchme;
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = 0;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_WRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_write1);
+ATF_TC_HEAD(watchpoint_trap_data_write1, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 1");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_write1, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 1;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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);
+
+ ++watchme;
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_WRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_write2);
+ATF_TC_HEAD(watchpoint_trap_data_write2, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 2");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_write2, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 2;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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);
+
+ ++watchme;
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_WRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_write3);
+ATF_TC_HEAD(watchpoint_trap_data_write3, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 3");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_write3, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 3;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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);
+
+ ++watchme;
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_WRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_rw0);
+ATF_TC_HEAD(watchpoint_trap_data_rw0, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 0");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_rw0, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 0;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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("watchme=%d\n", watchme);
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_READWRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_rw1);
+ATF_TC_HEAD(watchpoint_trap_data_rw1, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 1");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_rw1, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 1;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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("watchme=%d\n", watchme);
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_READWRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_rw2);
+ATF_TC_HEAD(watchpoint_trap_data_rw2, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 2");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_rw2, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 2;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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("watchme=%d\n", watchme);
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_READWRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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_PTRACE_WATCHPOINTS)
+ATF_TC(watchpoint_trap_data_rw3);
+ATF_TC_HEAD(watchpoint_trap_data_rw3, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Call PT_COUNT_WATCHPOINTS and test write trap with watchpoint 3");
+}
+
+ATF_TC_BODY(watchpoint_trap_data_rw3, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ const int i = 3;
+ struct ptrace_watchpoint pw;
+ int len = sizeof(pw);
+ int watchme = 1234;
+
+ 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("watchme=%d\n", watchme);
+
+ 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("Preparing code watchpoint trap %d\n", i);
+
+ pw.pw_index = i;
+ pw.pw_md.md_address = &watchme;
+ pw.pw_md.md_condition = X86_HW_WATCHPOINT_DR7_CONDITION_DATA_READWRITE;
+ pw.pw_md.md_length = X86_HW_WATCHPOINT_DR7_LENGTH_BYTE;
+
+ printf("struct ptrace {\n");
+ printf("\t.pw_index=%d\n", pw.pw_index);
+ printf("\t.pw_lwpid=%d\n", pw.pw_lwpid);
+ printf("\t.pw_md.md_address=%p\n", pw.pw_md.md_address);
+ printf("\t.pw_md.md_condition=%#x\n", pw.pw_md.md_condition);
+ printf("\t.pw_md.md_length=%#x\n", pw.pw_md.md_length);
+ printf("}\n");
+
+ printf("Before writing watchpoint %d\n", i);
+ ATF_REQUIRE(ptrace(PT_WRITE_WATCHPOINT, child, &pw, len) != -1);
+
+ 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_stopped(status, SIGTRAP);
+
+ 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);
@@ -144,5 +1368,21 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC_HAVE_GPREGS(tp, regs1);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_count);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_read);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_write_unmodified);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_code0);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_code1);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_code2);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_code3);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_write0);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_write1);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_write2);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_write3);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_rw0);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_rw1);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_rw2);
+ ATF_TP_ADD_TC_HAVE_PTRACE_WATCHPOINTS(tp, watchpoint_trap_data_rw3);
+
return atf_no_error();
}
