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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>
This commit is contained in:
kamil 2016-12-13 12:25:05 +00:00
parent 1377ca283a
commit 2826f37556
1 changed files with 2 additions and 117 deletions
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119
tests/kernel/t_ptrace_wait.c
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@ -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 @@ ATF_TC_BODY(fpregs2, tc)
}
#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_TCS(tp)
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);