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2008-08-05 Xudong Guan <xudong.guan@criticalsoftware.com>

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PR 1212/cpukit
	* Makefile.am, configure.ac: Time slicing will not happen if the task
	mode is changed from a non-timeslicing mode to timeslicing mode if it
	is done by the executing thread (e.g. in its task body). This change
	includes sp44 to demonstrate the problem and verify the correction.
	* sp44/.cvsignore, sp44/Makefile.am, sp44/init.c, sp44/sp44.scn: New files.
This commit is contained in:
Joel Sherrill
2008-08-05 13:10:26 +00:00
parent c0f4682bbf
commit cccd632c8d
7 changed files with 204 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
testsuites/sptests/ChangeLog
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@@ -1,3 +1,12 @@
2008-08-05 Xudong Guan <xudong.guan@criticalsoftware.com>
PR 1212/cpukit
* Makefile.am, configure.ac: Time slicing will not happen if the task
mode is changed from a non-timeslicing mode to timeslicing mode if it
is done by the executing thread (e.g. in its task body). This change
includes sp44 to demonstrate the problem and verify the correction.
* sp44/.cvsignore, sp44/Makefile.am, sp44/init.c, sp44/sp44.scn: New files.
2008-07-17 Joel Sherrill <joel.sherrill@oarcorp.com>
* sp09/screen09.c: Do not use Simple Vectored Interrupt calls on

6
testsuites/sptests/Makefile.am
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@@ -7,9 +7,9 @@ ACLOCAL_AMFLAGS = -I ../aclocal
## spfatal is not included for now
SUBDIRS = sp01 sp02 sp03 sp04 sp05 sp06 sp07 sp08 sp09 sp11 sp12 sp13 sp14 \
sp15 sp16 sp17 sp19 sp20 sp21 sp22 sp23 sp24 sp25 sp26 sp27 sp28 sp29 \
sp30 sp31 sp32 sp33 sp34 sp35 sp37 sp38 sp39 sp40 sp41 sp42 sp43 spsize \
spfatal01 spfatal02 spfatal03 spfatal04 spfatal05 spfatal06 spfatal07 \
spfatal08 spfatal09 spfatal10
sp30 sp31 sp32 sp33 sp34 sp35 sp37 sp38 sp39 sp40 sp41 sp42 sp43 sp44 \
spsize spfatal01 spfatal02 spfatal03 spfatal04 spfatal05 spfatal06 \
spfatal07 spfatal08 spfatal09 spfatal10
DIST_SUBDIRS = $(SUBDIRS) spfatal spfatal_support
EXTRA_DIST = spfatal_support/init.c spfatal_support/system.h

1
testsuites/sptests/configure.ac
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@@ -68,6 +68,7 @@ sp40/Makefile
sp41/Makefile
sp42/Makefile
sp43/Makefile
sp44/Makefile
spsize/Makefile
spfatal/Makefile
spfatal01/Makefile

2
testsuites/sptests/sp44/.cvsignore Normal file
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@@ -0,0 +1,2 @@
Makefile
Makefile.in

27
testsuites/sptests/sp44/Makefile.am Normal file
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@@ -0,0 +1,27 @@
##
## $Id$
##
MANAGERS = all
rtems_tests_PROGRAMS = sp44.exe
sp44_exe_SOURCES = init.c
dist_rtems_tests_DATA = sp44.scn
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../automake/compile.am
include $(top_srcdir)/../automake/leaf.am
sp44_exe_LDADD = $(MANAGERS_NOT_WANTED:%=$(PROJECT_LIB)/no-%.rel)
AM_CPPFLAGS += -I$(top_srcdir)/../support/include
LINK_OBJS = $(sp44_exe_OBJECTS) $(sp44_exe_LDADD)
LINK_LIBS = $(sp44_exe_LDLIBS)
sp44.exe$(EXEEXT): $(sp44_exe_OBJECTS) $(sp44_exe_DEPENDENCIES)
@rm -f sp44.exe$(EXEEXT)
$(make-exe)
include $(top_srcdir)/../automake/local.am

141
testsuites/sptests/sp44/init.c Normal file
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@@ -0,0 +1,141 @@
/*
* Original version submitted as part of PR1212
*
* This example shows a possible blocking of timeslicing if task mode is
* changed to timeslicing in the middle of its executing.
*
* The expected output is:
*
* Task #0's turn. Now setting turn to 1
* Task #1's turn. Now setting turn to 0
* Task #0's turn. Now setting turn to 1
* Task #1's turn. Now setting turn to 0
* Task #0's turn. Now setting turn to 1
* Task #1's turn. Now setting turn to 0
* Task #0's turn. Now setting turn to 1
* ...
*
* The actural output is:
*
* Task #0's turn. Now setting turn to 1
*
* Task #1 can not be dispatched also both tasks have timeslice enabled.
*
* Setting TASK_A/B_INITMODE to RTEMS_DEFAULT_MODES | RTEMS_TIMESLICE
* will produce the expected output.
*
* $Id$
*/
#include <tmacros.h>
#include <rtems.h>
#include <stdio.h>
#include <stdlib.h>
/*** Task priorities ***/
#define TASK_A_PRIORITY 10
#define TASK_B_PRIORITY 10
/*** Task names ***/
#define TASK_A_NAME 1
#define TASK_B_NAME 2
/*** Task atributes ***/
#define TASK_A_INITMODE RTEMS_DEFAULT_MODES
#define TASK_B_INITMODE RTEMS_DEFAULT_MODES
/*** Task generic parameters ***/
#define TASK_A_STACKSIZE RTEMS_MINIMUM_STACK_SIZE
#define TASK_A_MODEATTR RTEMS_DEFAULT_ATTRIBUTES
#define TASK_B_STACKSIZE RTEMS_MINIMUM_STACK_SIZE
#define TASK_B_MODEATTR RTEMS_DEFAULT_ATTRIBUTES
volatile uint32_t turn;
rtems_id TaskA_id, TaskB_id;
#define TEST_FAILED(_status, _msg) \
do { \
printf("Test failed, status code: %d, msg: %s\n", _status, _msg); \
exit(1); \
} while(0)
/* TASK A/B */
rtems_task TaskAB_entry(rtems_task_argument me)
{
static rtems_mode previous_mode_set;
rtems_status_code status;
uint32_t iterations = 0;
status = rtems_task_mode(RTEMS_PREEMPT | RTEMS_TIMESLICE,
RTEMS_PREEMPT_MASK | RTEMS_TIMESLICE_MASK,
&previous_mode_set);
if (status != RTEMS_SUCCESSFUL)
TEST_FAILED(status, "Unable to change task mode.");
while(1) {
if (turn == me) {
printf("Task #%d's turn. Now setting turn to %d\n", me, 1 - me);
turn = 1 - me;
if ( ++iterations == 10 ) {
puts( "*** END OF SP44 TEST ***" );
exit( 0 );
}
}
}
}
rtems_task Init(rtems_task_argument ignored)
{
static rtems_status_code status;
puts( "\n\n*** SP44 TEST ***" );
/* Create Task A */
status = rtems_task_create(TASK_A_NAME, TASK_A_PRIORITY, TASK_A_STACKSIZE,
TASK_A_INITMODE, TASK_A_MODEATTR, &TaskA_id);
if (status != RTEMS_SUCCESSFUL)
TEST_FAILED(status,"rtems_task_create failed.\n");
/* Start Task A */
status = rtems_task_start(TaskA_id, TaskAB_entry, 0);
if (status != RTEMS_SUCCESSFUL)
TEST_FAILED(status,"rtems_task_start failed.\n");
/* Create Task B */
status = rtems_task_create(TASK_B_NAME, TASK_B_PRIORITY, TASK_B_STACKSIZE,
TASK_B_INITMODE, TASK_B_MODEATTR, &TaskB_id);
if (status != RTEMS_SUCCESSFUL)
TEST_FAILED(status,"rtems_task_create failed.\n");
/* Start Task B */
status = rtems_task_start(TaskB_id, TaskAB_entry, 1);
if (status != RTEMS_SUCCESSFUL)
TEST_FAILED(status,"rtems_task_start failed.\n");
/* Suspend itself */
status = rtems_task_suspend(RTEMS_SELF);
if (status != RTEMS_SUCCESSFUL)
TEST_FAILED(status,"rtems_task_suspend failed.\n");
/* This task is not suposed to be executed anymore */
printf("\nNOT SUPOSED TO RETURN HERE...\n");
exit(1);
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_MICROSECONDS_PER_TICK 1000
#define CONFIGURE_TICKS_PER_TIMESLICE 10
#define CONFIGURE_MAXIMUM_TASKS 3
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>

21
testsuites/sptests/sp44/sp44.scn Normal file
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@@ -0,0 +1,21 @@
*** SP44 TEST ***
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
Task #1's turn. Now setting turn to 0
Task #0's turn. Now setting turn to 1
*** END OF SP44 TEST ***