[src/trunk]: src/tests/kernel Remove dbregs[12] from t_ptrace_wait{, 3, 4, 6, id, ...

[kamil <kamil%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/72d307fd5fcc
branches:  trunk
changeset: 349522:72d307fd5fcc
user:      kamil <kamil%NetBSD.org@localhost>
date:      Tue Dec 13 12:25:05 2016 +0000

description:
Remove dbregs[12] from t_ptrace_wait{,3,4,6,id,pid}

CPU Debug Registers won't be exposed as is to userland.

Hardware Watchpoints will be exported to userland dedicated interface
through the ptrace(2) interface.

Sponsored by <The NetBSD Foundation>

diffstat:

 tests/kernel/t_ptrace_wait.c |  119 +------------------------------------------
 1 files changed, 2 insertions(+), 117 deletions(-)

diffs (147 lines):

diff -r 6232e25ca7a3 -r 72d307fd5fcc tests/kernel/t_ptrace_wait.c
--- a/tests/kernel/t_ptrace_wait.c      Tue Dec 13 11:01:10 2016 +0000
+++ b/tests/kernel/t_ptrace_wait.c      Tue Dec 13 12:25:05 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_ptrace_wait.c,v 1.46 2016/12/08 13:32:17 kamil Exp $ */
+/*     $NetBSD: t_ptrace_wait.c,v 1.47 2016/12/13 12:25:05 kamil Exp $ */
 
 /*-
  * Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.46 2016/12/08 13:32:17 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.47 2016/12/13 12:25:05 kamil Exp $");
 
 #include <sys/param.h>
 #include <sys/types.h>
@@ -3907,118 +3907,6 @@
 }
 #endif
 
-#if defined(HAVE_DBREGS)
-ATF_TC(dbregs1);
-ATF_TC_HEAD(dbregs1, tc)
-{
-       atf_tc_set_md_var(tc, "descr",
-           "Verify plain PT_GETDBREGS call without further steps");
-}
-
-ATF_TC_BODY(dbregs1, tc)
-{
-       const int exitval = 5;
-       const int sigval = SIGSTOP;
-       pid_t child, wpid;
-#if defined(TWAIT_HAVE_STATUS)
-       int status;
-#endif
-       struct dbreg r;
-
-       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 GETDBREGS for the child process\n");
-       ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r, 0) != -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_DBREGS)
-ATF_TC(dbregs2);
-ATF_TC_HEAD(dbregs2, tc)
-{
-       atf_tc_set_md_var(tc, "descr",
-           "Verify PT_GETDBREGS and PT_SETDBREGS calls without changing "
-           "regs");
-}
-
-ATF_TC_BODY(dbregs2, tc)
-{
-       const int exitval = 5;
-       const int sigval = SIGSTOP;
-       pid_t child, wpid;
-#if defined(TWAIT_HAVE_STATUS)
-       int status;
-#endif
-       struct dbreg r;
-
-       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 GETDBREGS for the child process\n");
-       ATF_REQUIRE(ptrace(PT_GETDBREGS, child, &r, 0) != -1);
-
-       printf("Call SETDBREGS for the child (without changed regs)\n");
-       ATF_REQUIRE(ptrace(PT_SETDBREGS, child, &r, 0) != -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(PT_STEP)
 ATF_TC(step1);
 ATF_TC_HEAD(step1, tc)
@@ -4641,9 +4529,6 @@
        ATF_TP_ADD_TC_HAVE_FPREGS(tp, fpregs1);
        ATF_TP_ADD_TC_HAVE_FPREGS(tp, fpregs2);
 
-       ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs1);
-       ATF_TP_ADD_TC_HAVE_DBREGS(tp, dbregs2);
-
        ATF_TP_ADD_TC_PT_STEP(tp, step1);
        ATF_TP_ADD_TC_PT_STEP(tp, step2);
        ATF_TP_ADD_TC_PT_STEP(tp, step3);