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[src/trunk]: src/tests/kernel Fix the tests that broke after my changes.



details:   https://anonhg.NetBSD.org/src/rev/c41d719f3950
branches:  trunk
changeset: 349307:c41d719f3950
user:      christos <christos%NetBSD.org@localhost>
date:      Mon Dec 05 21:20:38 2016 +0000

description:
Fix the tests that broke after my changes.
XXX: This code is heavily duplicated and needs some merging.

diffstat:

 tests/kernel/t_ptrace_wait.c |  85 +++++++++++++++++++++----------------------
 1 files changed, 42 insertions(+), 43 deletions(-)

diffs (209 lines):

diff -r 6d682eb43b35 -r c41d719f3950 tests/kernel/t_ptrace_wait.c
--- a/tests/kernel/t_ptrace_wait.c      Mon Dec 05 20:10:10 2016 +0000
+++ b/tests/kernel/t_ptrace_wait.c      Mon Dec 05 21:20:38 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_ptrace_wait.c,v 1.41 2016/12/05 20:10:10 christos Exp $      */
+/*     $NetBSD: t_ptrace_wait.c,v 1.42 2016/12/05 21:20:38 christos Exp $      */
 
 /*-
  * Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.41 2016/12/05 20:10:10 christos Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.42 2016/12/05 21:20:38 christos Exp $");
 
 #include <sys/param.h>
 #include <sys/types.h>
@@ -312,8 +312,8 @@
        ATF_REQUIRE(msg_open(&parent_tracee) == 0);
        tracee = atf_utils_fork();
        if (tracee == 0) {
-               CHILD_FROM_PARENT("message 1", parent_tracee, msg);
-               msg_close(&parent_tracee);
+               // Wait for parent to let us exit
+               CHILD_FROM_PARENT("exit tracee", parent_tracee, msg);
                _exit(exitval_tracee);
        }
 
@@ -334,9 +334,10 @@
                FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1);
 
                /* Inform parent that tracer has attached to tracee */
-               CHILD_TO_PARENT("Message 1", parent_tracer, msg);
-
-               CHILD_FROM_PARENT("Message 2", parent_tracer, msg);
+               CHILD_TO_PARENT("tracer ready", parent_tracer, msg);
+
+               /* Wait for parent to tell use that tracee should have exited */
+               CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg);
 
                /* Wait for tracee and assert that it exited */
                FORKEE_REQUIRE_SUCCESS(
@@ -345,38 +346,32 @@
                forkee_status_exited(status, exitval_tracee);
                printf("Tracee %d exited with %d\n", tracee, exitval_tracee);
 
-               CHILD_TO_PARENT("Message 3", parent_tracer, msg);
-
                printf("Before exiting of the tracer process\n");
-               msg_close(&parent_tracer);
                _exit(exitval_tracer);
        }
 
        printf("Wait for the tracer to attach to the tracee\n");
-       PARENT_FROM_CHILD("Message 1", parent_tracer, msg);
+       PARENT_FROM_CHILD("tracer ready", parent_tracer, msg);
 
        printf("Resume the tracee and let it exit\n");
-       PARENT_TO_CHILD("Message 1", parent_tracee,  msg);
+       PARENT_TO_CHILD("exit tracee", parent_tracee,  msg);
 
        printf("Detect that tracee is zombie\n");
        await_zombie(tracee);
 
-       printf("Tell the tracer child should have exited\n");
-       PARENT_TO_CHILD("Message 2", parent_tracer,  msg);
-
-       printf("Wait from tracer child to complete waiting for tracee\n");
-       PARENT_FROM_CHILD("Message 3", parent_tracer, msg);
+
        printf("Assert that there is no status about tracee %d - "
            "Tracer must detect zombie first - calling %s()\n", tracee,
            TWAIT_FNAME);
        TWAIT_REQUIRE_SUCCESS(
            wpid = TWAIT_GENERIC(tracee, &status, WNOHANG), 0);
 
-       printf("Resume the tracer and let it detect exited tracee\n");
-       PARENT_TO_CHILD("Message 2", parent_tracer, msg);
-
+       printf("Tell the tracer child should have exited\n");
+       PARENT_TO_CHILD("wait for tracee exit", parent_tracer,  msg);
        printf("Wait for tracer to finish its job and exit - calling %s()\n",
            TWAIT_FNAME);
+
+       printf("Wait from tracer child to complete waiting for tracee\n");
        TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracer, &status, 0),
            tracer);
 
@@ -385,7 +380,7 @@
        printf("Wait for tracee to finish its job and exit - calling %s()\n",
            TWAIT_FNAME);
        TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, WNOHANG),
-           0);
+           tracee);
 
        validate_status_exited(status, exitval_tracee);
 
@@ -649,17 +644,15 @@
                parent = getppid();
 
                /* Emit message to the parent */
-               CHILD_TO_PARENT("Message 1", parent_tracee, msg);
-
-               CHILD_FROM_PARENT("Message 2", parent_tracee, msg);
+               CHILD_TO_PARENT("tracee ready", parent_tracee, msg);
+               CHILD_FROM_PARENT("exit tracee", parent_tracee, msg);
 
                FORKEE_ASSERT_EQ(parent, getppid());
 
                _exit(exitval_tracee);
        }
        printf("Wait for child to record its parent identifier (pid)\n");
-       PARENT_FROM_CHILD("Message 1", parent_tracee, msg);
-       PARENT_TO_CHILD("Message 2", parent_tracee, msg);
+       PARENT_FROM_CHILD("tracee ready", parent_tracee, msg);
 
        printf("Spawn debugger\n");
        tracer = atf_utils_fork();
@@ -678,7 +671,10 @@
                FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1);
 
                /* Inform parent that tracer has attached to tracee */
-               CHILD_TO_PARENT("Message 1", parent_tracer, msg);
+               CHILD_TO_PARENT("tracer ready", parent_tracer, msg);
+
+               /* Wait for parent to tell use that tracee should have exited */
+               CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg);
 
                /* Wait for tracee and assert that it exited */
                FORKEE_REQUIRE_SUCCESS(
@@ -691,8 +687,10 @@
        }
 
        printf("Wait for the tracer to attach to the tracee\n");
-       PARENT_FROM_CHILD("Message 1",  parent_tracer, msg);
-       PARENT_TO_CHILD("Message 2",  parent_tracee, msg);
+       PARENT_FROM_CHILD("tracer ready",  parent_tracer, msg);
+
+       printf("Resume the tracee and let it exit\n");
+       PARENT_TO_CHILD("exit tracee",  parent_tracee, msg);
 
        printf("Detect that tracee is zombie\n");
        await_zombie(tracee);
@@ -702,11 +700,10 @@
        TWAIT_REQUIRE_SUCCESS(
            wpid = TWAIT_GENERIC(tracee, &status, WNOHANG), 0);
 
-       printf("Resume the tracer and let it detect exited tracee\n");
-       PARENT_TO_CHILD("Message 2",  parent_tracer, msg);
-
-       printf("Wait for tracer to finish its job and exit - calling %s()\n",
-           TWAIT_FNAME);
+       printf("Tell the tracer child should have exited\n");
+       PARENT_TO_CHILD("wait for tracee exit",  parent_tracer, msg);
+
+       printf("Wait from tracer child to complete waiting for tracee\n");
        TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracer, &status, 0),
            tracer);
 
@@ -885,9 +882,9 @@
        if (tracee == 0) {
                parent = getppid();
 
-               /* Emit message to the parent */
-               CHILD_TO_PARENT("Message 1", parent_tracee, msg);
-               CHILD_FROM_PARENT("Message 2", parent_tracee, msg);
+               // Wait for parent to let us exit
+               CHILD_TO_PARENT("tracee ready", parent_tracee, msg);
+               CHILD_FROM_PARENT("tracee exit", parent_tracee, msg);
 
                FORKEE_ASSERT((fp = fopen(fname, "r")) != NULL);
                fscanf(fp, "%s %d %d", s_executable, &s_pid, &s_ppid);
@@ -898,8 +895,7 @@
        }
 
        printf("Wait for child to record its parent identifier (pid)\n");
-       PARENT_FROM_CHILD("Message 1", parent_tracee, msg);
-       PARENT_TO_CHILD("Message 2", parent_tracee, msg);
+       PARENT_FROM_CHILD("tracee ready", parent_tracee, msg);
 
        printf("Spawn debugger\n");
        tracer = atf_utils_fork();
@@ -917,8 +913,11 @@
                FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1);
 
                /* Inform parent that tracer has attached to tracee */
-               CHILD_TO_PARENT("Message 1", parent_tracer, msg);
-               CHILD_FROM_PARENT("Message 2", parent_tracer, msg);
+               CHILD_TO_PARENT("tracer ready", parent_tracer, msg);
+
+               /* Wait for parent to tell use that tracee should have exited */
+               CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg);
+
                /* Wait for tracee and assert that it exited */
                FORKEE_REQUIRE_SUCCESS(
                    wpid = TWAIT_GENERIC(tracee, &status, 0), tracee);
@@ -929,9 +928,9 @@
                _exit(exitval_tracer);
        }
        printf("Wait for the tracer to attach to the tracee\n");
-       PARENT_FROM_CHILD("Message 1", parent_tracer, msg);
+       PARENT_FROM_CHILD("tracer ready", parent_tracer, msg);
        printf("Resume the tracee and let it exit\n");
-       PARENT_TO_CHILD("Message 1", parent_tracee, msg);
+       PARENT_TO_CHILD("tracee exit", parent_tracee, msg);
 
        printf("Detect that tracee is zombie\n");
        await_zombie(tracee);



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