[src/trunk]: src/tests/kernel Add fpregs[12] in t_ptrace_wait{, 3, 4, 6, id, pid}

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

details:   https://anonhg.NetBSD.org/src/rev/8426316a5f82
branches:  trunk
changeset: 819267:8426316a5f82
user:      kamil <kamil%NetBSD.org@localhost>
date:      Thu Nov 24 22:52:03 2016 +0000

description:
Add fpregs[12] in t_ptrace_wait{,3,4,6,id,pid}

fpregs1:
    Verify plain PT_GETFPREGS call without further steps

fpregs2:
    Verify PT_GETFPREGS and PT_SETFPREGS calls without changing regs

Sponsored by <The NetBSD Foundation>

diffstat:

 tests/kernel/t_ptrace_wait.c |  131 ++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 129 insertions(+), 2 deletions(-)

diffs (172 lines):

diff -r 5cd48eee41c3 -r 8426316a5f82 tests/kernel/t_ptrace_wait.c
--- a/tests/kernel/t_ptrace_wait.c      Thu Nov 24 22:42:16 2016 +0000
+++ b/tests/kernel/t_ptrace_wait.c      Thu Nov 24 22:52:03 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_ptrace_wait.c,v 1.29 2016/11/24 04:11:16 kamil Exp $ */
+/*     $NetBSD: t_ptrace_wait.c,v 1.30 2016/11/24 22:52:03 kamil Exp $ */
 
 /*-
  * Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.29 2016/11/24 04:11:16 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.30 2016/11/24 22:52:03 kamil Exp $");
 
 #include <sys/param.h>
 #include <sys/types.h>
@@ -196,6 +196,12 @@
 #define HAVE_GPREGS
 #endif
 
+/* Add guards for floating point registers */
+#if defined(PT_GETFPREGS)              \
+    && defined(PT_SETFPREGS)
+#define HAVE_FPREGS
+#endif
+
 /*
  * If waitid(2) returns because one or more processes have a state change to
  * report, 0 is returned.  If an error is detected, a value of -1 is returned
@@ -4337,6 +4343,118 @@
 }
 #endif
 
+#if defined(HAVE_FPREGS)
+ATF_TC(fpregs1);
+ATF_TC_HEAD(fpregs1, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "Verify plain PT_GETFPREGS call without further steps");
+}
+
+ATF_TC_BODY(fpregs1, tc)
+{
+       const int exitval = 5;
+       const int sigval = SIGSTOP;
+       pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+       int status;
+#endif
+       struct fpreg r;
+
+       printf("Before forking process PID=%d\n", getpid());
+       child = atf_utils_fork();
+       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(ptrace(PT_GETFPREGS, 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_FPREGS)
+ATF_TC(fpregs2);
+ATF_TC_HEAD(fpregs2, tc)
+{
+       atf_tc_set_md_var(tc, "descr",
+           "Verify PT_GETFPREGS and PT_SETFPREGS calls without changing "
+           "regs");
+}
+
+ATF_TC_BODY(fpregs2, tc)
+{
+       const int exitval = 5;
+       const int sigval = SIGSTOP;
+       pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+       int status;
+#endif
+       struct fpreg r;
+
+       printf("Before forking process PID=%d\n", getpid());
+       child = atf_utils_fork();
+       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 GETFPREGS for the child process\n");
+       ATF_REQUIRE(ptrace(PT_GETFPREGS, child, &r, 0) != -1);
+
+       printf("Call SETFPREGS for the child (without changed regs)\n");
+       ATF_REQUIRE(ptrace(PT_GETFPREGS, 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(TWAIT_HAVE_PID)
 #define ATF_TP_ADD_TC_HAVE_PID(a,b)    ATF_TP_ADD_TC(a,b)
 #else
@@ -4349,6 +4467,12 @@
 #define ATF_TP_ADD_TC_HAVE_GPREGS(a,b)
 #endif
 
+#if defined(HAVE_FPREGS)
+#define ATF_TP_ADD_TC_HAVE_FPREGS(a,b) ATF_TP_ADD_TC(a,b)
+#else
+#define ATF_TP_ADD_TC_HAVE_FPREGS(a,b)
+#endif
+
 ATF_TP_ADD_TCS(tp)
 {
        setvbuf(stdout, NULL, _IONBF, 0);
@@ -4417,5 +4541,8 @@
        ATF_TP_ADD_TC_HAVE_GPREGS(tp, regs4);
        ATF_TP_ADD_TC_HAVE_GPREGS(tp, regs5);
 
+       ATF_TP_ADD_TC_HAVE_FPREGS(tp, fpregs1);
+       ATF_TP_ADD_TC_HAVE_FPREGS(tp, fpregs2);
+
        return atf_no_error();
 }