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Finish the Zynq demo.

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This commit is contained in:
Richard Barry 2014-02-03 17:39:45 +00:00
parent 2fc4e89b98
commit c83414ccc4
12 changed files with 421 additions and 122 deletions
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5
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/.cproject
View file

@ -32,8 +32,9 @@
</option>
<option id="xilinx.gnu.compiler.dircategory.includes.1516519458" name="Include Paths" superClass="xilinx.gnu.compiler.dircategory.includes" valueType="includePath">
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/FreeRTOS_Source/include}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/FreeRTOS-Plus-CLI}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/Standard_Demo_Tasks/include}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/Full_Demo}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/Full_Demo/FreeRTOS-Plus-CLI}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/Full_Demo/Standard_Demo_Tasks/include}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/${ProjName}/src/FreeRTOS_Source/portable/GCC/ARM_CA9}&quot;"/>
</option>

151
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/.project
View file

@ -24,56 +24,38 @@
<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
</natures>
<linkedResources>
<link>
<name>src/FreeRTOS-Plus-CLI</name>
<type>2</type>
<locationURI>FREERTOS_ROOT/FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI</locationURI>
</link>
<link>
<name>src/FreeRTOS_Source</name>
<type>2</type>
<locationURI>FREERTOS_ROOT/FreeRTOS/Source</locationURI>
</link>
<link>
<name>src/Sample-CLI-commands.c</name>
<name>src/Full_Demo/FreeRTOS-Plus-CLI</name>
<type>2</type>
<locationURI>FREERTOS_ROOT/FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI</locationURI>
</link>
<link>
<name>src/Full_Demo/Sample-CLI-commands.c</name>
<type>1</type>
<locationURI>FREERTOS_ROOT/FreeRTOS-Plus/Demo/Common/FreeRTOS_Plus_CLI_Demos/Sample-CLI-commands.c</locationURI>
</link>
<link>
<name>src/Standard_Demo_Tasks</name>
<name>src/Full_Demo/Standard_Demo_Tasks</name>
<type>2</type>
<locationURI>FREERTOS_ROOT/FreeRTOS/Demo/Common</locationURI>
</link>
<link>
<name>src/UARTCommandConsole.c</name>
<name>src/Full_Demo/UARTCommandConsole.c</name>
<type>1</type>
<locationURI>FREERTOS_ROOT/FreeRTOS-Plus/Demo/Common/FreeRTOS_Plus_CLI_Demos/UARTCommandConsole.c</locationURI>
</link>
<link>
<name>src/Standard_Demo_Tasks/IntQueue.c</name>
<name>src/Full_Demo/Standard_Demo_Tasks/IntQueue.c</name>
<type>1</type>
<locationURI>FREERTOS_ROOT/FreeRTOS/Demo/Common/Minimal/IntQueue.c</locationURI>
</link>
</linkedResources>
<filteredResources>
<filter>
<id>1390227891704</id>
<name>src/Standard_Demo_Tasks</name>
<type>9</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-minimal</arguments>
</matcher>
</filter>
<filter>
<id>1390227891720</id>
<name>src/Standard_Demo_Tasks</name>
<type>9</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-include</arguments>
</matcher>
</filter>
<filter>
<id>1390074074500</id>
<name>src/FreeRTOS_Source/portable</name>
@ -93,57 +75,21 @@
</matcher>
</filter>
<filter>
<id>1390228639904</id>
<name>src/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks</name>
<type>9</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-alt*.*</arguments>
<arguments>1.0-name-matches-false-false-minimal</arguments>
</matcher>
</filter>
<filter>
<id>1390228639904</id>
<name>src/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks</name>
<type>9</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-cr*.*</arguments>
</matcher>
</filter>
<filter>
<id>1390228639904</id>
<name>src/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-sp*.*</arguments>
</matcher>
</filter>
<filter>
<id>1390228639904</id>
<name>src/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-intqueue*.*</arguments>
</matcher>
</filter>
<filter>
<id>1390228639904</id>
<name>src/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-*strings*.*</arguments>
</matcher>
</filter>
<filter>
<id>1390227918703</id>
<name>src/Standard_Demo_Tasks/include</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-alt*.*</arguments>
<arguments>1.0-name-matches-false-false-include</arguments>
</matcher>
</filter>
<filter>
@ -164,6 +110,69 @@
<arguments>1.0-name-matches-false-false-heap_4.c</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-alt*.*</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-cr*.*</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-sp*.*</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-intqueue*.*</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-*strings*.*</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/Minimal</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-copy*.*</arguments>
</matcher>
</filter>
<filter>
<id>0</id>
<name>src/Full_Demo/Standard_Demo_Tasks/include</name>
<type>6</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-alt*.*</arguments>
</matcher>
</filter>
</filteredResources>
<variableList>
<variable>

0
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/main_blinky.c → FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/Blinky_Demo/main_blinky.c
View file

2
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/FreeRTOSConfig.h
View file

@ -115,7 +115,7 @@
#define configUSE_PREEMPTION 1
#define configUSE_IDLE_HOOK 1
#define configUSE_TICK_HOOK 1
#define configMAX_PRIORITIES ( 5 )
#define configMAX_PRIORITIES ( 7 )
#define configMINIMAL_STACK_SIZE ( ( unsigned short ) 160 )
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 51200 ) )
#define configMAX_TASK_NAME_LEN ( 10 )

5
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/FreeRTOS_tick_config.c
View file

@ -150,11 +150,12 @@ const XScuGic_VectorTableEntry *pxVectorEntry;
/* The ID of the interrupt is obtained by bitwise anding the ICCIAR value
with 0x3FF. */
ulInterruptID = ulICCIAR & 0x3FFUL;
configASSERT( ulInterruptID < XSCUGIC_MAX_NUM_INTR_INPUTS );
if( ulInterruptID < XSCUGIC_MAX_NUM_INTR_INPUTS )
{
/* Call the function installed in the array of installed handler functions. */
pxVectorEntry = &( pxVectorTable[ ulInterruptID ] );
pxVectorEntry->Handler( pxVectorEntry->CallBackRef );
}
}

3
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/IntQueueTimer.c → FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/Full_Demo/IntQueueTimer.c
View file

@ -139,7 +139,8 @@ static const UBaseType_t uxInterruptPriorities[ tmrTIMERS_USED ] =
configMAX_API_CALL_INTERRUPT_PRIORITY + 1,
configMAX_API_CALL_INTERRUPT_PRIORITY,
configMAX_API_CALL_INTERRUPT_PRIORITY - 1
}
};
static XTtcPs xTimerInstances[ tmrTIMERS_USED ];
/* Used to provide a means of ensuring the intended interrupt nesting depth is

0
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/IntQueueTimer.h → FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/Full_Demo/IntQueueTimer.h
View file

64
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/main_full.c → FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/Full_Demo/main_full.c
View file

@ -74,6 +74,13 @@
* full demo. Generic functions, such FreeRTOS hook functions, and functions
* required to configure the hardware, are defined in main.c.
*
* NOTE 3: The full demo includes a test that checks the floating point context
* is maintained correctly across task switches. The standard GCC libraries can
* use floating point registers and made this test fail (unless the tasks that
* use the library are given a floating point context as described on the
* documentation page for this demo). printf-stdarg.c is included in this
* project to prevent the standard GCC libraries being linked into the project.
*
******************************************************************************
*
* main_full() creates all the demo application tasks and software timers, then
@ -84,22 +91,13 @@
* In addition to the standard demo tasks, the following tasks and tests are
* defined and/or created within this file:
*
* FreeRTOS+CLI command console. The command console is access through UART2
* using 115200 baud if mainINCLUDE_FAT_SL_DEMO is set to 1. For reasons of
* robustness testing the UART driver is deliberately written to be inefficient
* and should not be used as a template for a production driver. Type "help" to
* see a list of registered commands. The FreeRTOS+CLI license is different to
* the FreeRTOS license, see http://www.FreeRTOS.org/cli for license and usage
* details.
*
* FreeRTOS+FAT SL. FreeRTOS+FAT SL is demonstrated using a RAM disk if
* mainINCLUDE_FAT_SL_DEMO is set to 1. [At the time of writing] The
* functionality of the file system demo is identical to the functionality of
* the FreeRTOS Win32 simulator file system demo, with the command console being
* accessed via the UART (as described above) instead of a network terminal.
* The FreeRTOS+FAT SL license is different to the FreeRTOS license, see
* http://www.FreeRTOS.org/fat_sl for license and usage details, and a
* description of the file system demo functionality.
* FreeRTOS+CLI command console. The command console is access through the
* UART to USB connector on the ZC702 Zynq development board (marked J2). For
* reasons of robustness testing the UART driver is deliberately written to be
* inefficient and should not be used as a template for a production driver.
* Type "help" to see a list of registered commands. The FreeRTOS+CLI license
* is different to the FreeRTOS license, see http://www.FreeRTOS.org/cli for
* license and usage details. The default baud rate is 115200.
*
* "Reg test" tasks - These fill both the core and floating point registers with
* known values, then check that each register maintains its expected value for
@ -146,9 +144,6 @@
#include "QueueOverwrite.h"
#include "IntQueue.h"
/* FreeRTOS+CLI and FreeRTOS+FAT SL includes. */
//#include "UARTCommandConsole.h"
/* Priorities for the demo application tasks. */
#define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1UL )
#define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2UL )
@ -168,20 +163,15 @@
/* A block time of zero simply means "don't block". */
#define mainDONT_BLOCK ( 0UL )
/* In this example the baud rate is hard coded and there is no LED for use by
the COM test tasks, so just set both to invalid values. */
#define mainCOM_TEST_LED ( 100 )
#define mainBAUD_RATE ( 0 )
/* The period after which the check timer will expire, in ms, provided no errors
have been reported by any of the standard demo tasks. ms are converted to the
equivalent in ticks using the portTICK_RATE_MS constant. */
#define mainNO_ERROR_CHECK_TASK_PERIOD ( 3000UL / portTICK_RATE_MS )
equivalent in ticks using the portTICK_PERIOD_MS constant. */
#define mainNO_ERROR_CHECK_TASK_PERIOD ( 3000UL / portTICK_PERIOD_MS )
/* The period at which the check timer will expire, in ms, if an error has been
reported in one of the standard demo tasks. ms are converted to the equivalent
in ticks using the portTICK_RATE_MS constant. */
#define mainERROR_CHECK_TASK_PERIOD ( 200UL / portTICK_RATE_MS )
in ticks using the portTICK_PERIOD_MS constant. */
#define mainERROR_CHECK_TASK_PERIOD ( 200UL / portTICK_PERIOD_MS )
/* Parameters that are passed into the register check tasks solely for the
purpose of ensuring parameters are passed into tasks correctly. */
@ -191,12 +181,6 @@ purpose of ensuring parameters are passed into tasks correctly. */
/* The base period used by the timer test tasks. */
#define mainTIMER_TEST_PERIOD ( 50 )
/* The length of queues used to pass characters into and out of the UART
interrupt. Note the comments above about the UART driver being implemented in
this way to test the kernel robustness rather than to provide a template for an
efficient production driver. */
#define mainUART_QUEUE_LENGTHS 10
/*-----------------------------------------------------------*/
/*
@ -236,16 +220,16 @@ extern void vUARTCommandConsoleStart( uint16_t usStackSize, UBaseType_t uxPriori
/*-----------------------------------------------------------*/
/* The following two variables are used to communicate the status of the
register check tasks to the check software timer. If the variables keep
incrementing, then the register check tasks has not discovered any errors. If
a variable stops incrementing, then an error has been found. */
register check tasks to the check task. If the variables keep incrementing,
then the register check tasks has not discovered any errors. If a variable
stops incrementing, then an error has been found. */
volatile unsigned long ulRegTest1LoopCounter = 0UL, ulRegTest2LoopCounter = 0UL;
/*-----------------------------------------------------------*/
void main_full( void )
{
/* Start all the other standard demo/test tasks. The have not particular
/* Start all the other standard demo/test tasks. They have not particular
functionality, but do demonstrate how to use the FreeRTOS API and test the
kernel port. */
vStartInterruptQueueTasks();
@ -267,9 +251,7 @@ void main_full( void )
/* Register the standard CLI commands. */
vRegisterSampleCLICommands();
/* Create the register check tasks, as described at the top of this
file */
/* Create the register check tasks, as described at the top of this file */
xTaskCreate( prvRegTestTaskEntry1, "Reg1", configMINIMAL_STACK_SIZE, mainREG_TEST_TASK_1_PARAMETER, tskIDLE_PRIORITY, NULL );
xTaskCreate( prvRegTestTaskEntry2, "Reg2", configMINIMAL_STACK_SIZE, mainREG_TEST_TASK_2_PARAMETER, tskIDLE_PRIORITY, NULL );

0
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/reg_test.S → FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/Full_Demo/reg_test.S
View file

0
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/serial.c → FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/Full_Demo/serial.c
View file

12
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/main.c
View file

@ -74,6 +74,13 @@
* This file implements the code that is not demo specific, including the
* hardware setup and FreeRTOS hook functions.
*
* NOTE: The full demo includes a test that checks the floating point context
* is maintained correctly across task switches. The standard GCC libraries can
* use floating point registers and made this test fail (unless the tasks that
* use the library are given a floating point context as described on the
* documentation page for this demo). printf-stdarg.c is included in this
* project to prevent the standard GCC libraries being linked into the project.
*
* ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
* THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
* APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
@ -128,6 +135,10 @@ void vApplicationIdleHook( void );
void vApplicationStackOverflowHook( xTaskHandle pxTask, char *pcTaskName );
void vApplicationTickHook( void );
/*-----------------------------------------------------------*/
/* The interrupt controller is initialised in this file, and made available to
other modules. */
XScuGic xInterruptController;
/*-----------------------------------------------------------*/
@ -149,6 +160,7 @@ int main( void )
}
#endif
/* Don't expect to reach here. */
return 0;
}
/*-----------------------------------------------------------*/

293
FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/printf-stdarg.c Normal file
View file

@ -0,0 +1,293 @@
/*
Copyright 2001, 2002 Georges Menie (www.menie.org)
stdarg version contributed by Christian Ettinger
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
putchar is the only external dependency for this file,
if you have a working putchar, leave it commented out.
If not, uncomment the define below and
replace outbyte(c) by your own function call.
*/
#define putchar(c) c
#include <stdarg.h>
static void printchar(char **str, int c)
{
//extern int putchar(int c);
if (str) {
**str = (char)c;
++(*str);
}
else
{
(void)putchar(c);
}
}
#define PAD_RIGHT 1
#define PAD_ZERO 2
static int prints(char **out, const char *string, int width, int pad)
{
register int pc = 0, padchar = ' ';
if (width > 0) {
register int len = 0;
register const char *ptr;
for (ptr = string; *ptr; ++ptr) ++len;
if (len >= width) width = 0;
else width -= len;
if (pad & PAD_ZERO) padchar = '0';
}
if (!(pad & PAD_RIGHT)) {
for ( ; width > 0; --width) {
printchar (out, padchar);
++pc;
}
}
for ( ; *string ; ++string) {
printchar (out, *string);
++pc;
}
for ( ; width > 0; --width) {
printchar (out, padchar);
++pc;
}
return pc;
}
/* the following should be enough for 32 bit int */
#define PRINT_BUF_LEN 12
static int printi(char **out, int i, int b, int sg, int width, int pad, int letbase)
{
char print_buf[PRINT_BUF_LEN];
register char *s;
register int t, neg = 0, pc = 0;
register unsigned int u = (unsigned int)i;
if (i == 0) {
print_buf[0] = '0';
print_buf[1] = '\0';
return prints (out, print_buf, width, pad);
}
if (sg && b == 10 && i < 0) {
neg = 1;
u = (unsigned int)-i;
}
s = print_buf + PRINT_BUF_LEN-1;
*s = '\0';
while (u) {
t = (unsigned int)u % b;
if( t >= 10 )
t += letbase - '0' - 10;
*--s = (char)(t + '0');
u /= b;
}
if (neg) {
if( width && (pad & PAD_ZERO) ) {
printchar (out, '-');
++pc;
--width;
}
else {
*--s = '-';
}
}
return pc + prints (out, s, width, pad);
}
static int print( char **out, const char *format, va_list args )
{
register int width, pad;
register int pc = 0;
char scr[2];
for (; *format != 0; ++format) {
if (*format == '%') {
++format;
width = pad = 0;
if (*format == '\0') break;
if (*format == '%') goto out;
if (*format == '-') {
++format;
pad = PAD_RIGHT;
}
while (*format == '0') {
++format;
pad |= PAD_ZERO;
}
for ( ; *format >= '0' && *format <= '9'; ++format) {
width *= 10;
width += *format - '0';
}
if( *format == 's' ) {
register char *s = (char *)va_arg( args, int );
pc += prints (out, s?s:"(null)", width, pad);
continue;
}
if( *format == 'd' ) {
pc += printi (out, va_arg( args, int ), 10, 1, width, pad, 'a');
continue;
}
if( *format == 'x' ) {
pc += printi (out, va_arg( args, int ), 16, 0, width, pad, 'a');
continue;
}
if( *format == 'X' ) {
pc += printi (out, va_arg( args, int ), 16, 0, width, pad, 'A');
continue;
}
if( *format == 'u' ) {
pc += printi (out, va_arg( args, int ), 10, 0, width, pad, 'a');
continue;
}
if( *format == 'c' ) {
/* char are converted to int then pushed on the stack */
scr[0] = (char)va_arg( args, int );
scr[1] = '\0';
pc += prints (out, scr, width, pad);
continue;
}
}
else {
out:
printchar (out, *format);
++pc;
}
}
if (out) **out = '\0';
va_end( args );
return pc;
}
int printf(const char *format, ...)
{
va_list args;
va_start( args, format );
return print( 0, format, args );
}
int sprintf(char *out, const char *format, ...)
{
va_list args;
va_start( args, format );
return print( &out, format, args );
}
int snprintf( char *buf, unsigned int count, const char *format, ... )
{
va_list args;
( void ) count;
va_start( args, format );
return print( &buf, format, args );
}
#ifdef TEST_PRINTF
int main(void)
{
char *ptr = "Hello world!";
char *np = 0;
int i = 5;
unsigned int bs = sizeof(int)*8;
int mi;
char buf[80];
mi = (1 << (bs-1)) + 1;
printf("%s\n", ptr);
printf("printf test\n");
printf("%s is null pointer\n", np);
printf("%d = 5\n", i);
printf("%d = - max int\n", mi);
printf("char %c = 'a'\n", 'a');
printf("hex %x = ff\n", 0xff);
printf("hex %02x = 00\n", 0);
printf("signed %d = unsigned %u = hex %x\n", -3, -3, -3);
printf("%d %s(s)%", 0, "message");
printf("\n");
printf("%d %s(s) with %%\n", 0, "message");
sprintf(buf, "justif: \"%-10s\"\n", "left"); printf("%s", buf);
sprintf(buf, "justif: \"%10s\"\n", "right"); printf("%s", buf);
sprintf(buf, " 3: %04d zero padded\n", 3); printf("%s", buf);
sprintf(buf, " 3: %-4d left justif.\n", 3); printf("%s", buf);
sprintf(buf, " 3: %4d right justif.\n", 3); printf("%s", buf);
sprintf(buf, "-3: %04d zero padded\n", -3); printf("%s", buf);
sprintf(buf, "-3: %-4d left justif.\n", -3); printf("%s", buf);
sprintf(buf, "-3: %4d right justif.\n", -3); printf("%s", buf);
return 0;
}
/*
* if you compile this file with
* gcc -Wall $(YOUR_C_OPTIONS) -DTEST_PRINTF -c printf.c
* you will get a normal warning:
* printf.c:214: warning: spurious trailing `%' in format
* this line is testing an invalid % at the end of the format string.
*
* this should display (on 32bit int machine) :
*
* Hello world!
* printf test
* (null) is null pointer
* 5 = 5
* -2147483647 = - max int
* char a = 'a'
* hex ff = ff
* hex 00 = 00
* signed -3 = unsigned 4294967293 = hex fffffffd
* 0 message(s)
* 0 message(s) with %
* justif: "left "
* justif: " right"
* 3: 0003 zero padded
* 3: 3 left justif.
* 3: 3 right justif.
* -3: -003 zero padded
* -3: -3 left justif.
* -3: -3 right justif.
*/
#endif
/* To keep linker happy. */
int write( int i, char* c, int n)
{
(void)i;
(void)n;
(void)c;
return 0;
}