Re: [ECOS] POSIX layer and pthread:Unable to make the application

[Fabrizio Carrai <f dot carrai at libero dot it>]

Please check the value of the "POSIX pthread implementation header"
(Macro name is CYGBLD_ISO_PTHREAD_IMPL_HEADER). The value should be
<cyg/posix/pthread.h>
If so, something went bad in the building: **delete** the target
_install and _build directory and start a build from scratch.

Ciao
Fabrizio

Il 12 aprile 2012 10:44, medamine <medamine.ecos@gmail.com> ha scritto:
> On 04/11/2012 07:38 PM, Fabrizio Carrai wrote:
>
> Hi,
>
> The problem is that I dont have the <cyg/fileio/limits.h> header in my
> install tree also the <cyg/posix/pthread.h> header
> and I don't know why the confgtool did not generate these file when I build
> the library, Is it a problem of version of the configtool or what??
>
>> Hi,
>> also this seems a problem on the eCos library configuration generated
>> with the configtool.
>> I used the configuration I suggested in a previous post (and that you
>> adopted!) and I'm able to compile your example. Some warnings, but no
>> errors.
>>
>> The inclusion tree is the following:
>> "pthread.h"
>> "pkgconf/isoinfra.h"
>> "cyg/posix/pthread.h"
>>
>> The latter include the declarations that you miss. Please, check it.
>> Your "standard_Posix" configuration should be good.
>>
>> Fabrizio
>>
>> Il giorno 11 aprile 2012 16:12, medamine<medamine.ecos@gmail.com> ?ha
>> scritto:
>>
>>> Hi every one,
>>>
>>> I use
>>> Hardware: ST STM3210E EVAL board
>>> Packages: posix
>>> in the section:POSIX threads
>>>
>>> POSIX pthread implementation header Enabled=True Value=0
>>> POSIX mutex/cond var implementation header Enabled=True Value=0
>>>
>>> and I got the pthread.h :
>>>
>>> #ifndef CYGONCE_ISO_PTHREAD_H
>>> #define CYGONCE_ISO_PTHREAD_H
>>> /*===========================================
>>> //
>>> // pthread.h
>>> //
>>> // POSIX pthread functions
>>> //
>>> //===========================================
>>>
>>> /* CONFIGURATION */
>>>
>>> #include<pkgconf/isoinfra.h> ?/* Configuration header */
>>>
>>> /* INCLUDES */
>>>
>>> #ifdef CYGINT_ISO_PTHREAD_IMPL
>>> # ifdef CYGBLD_ISO_PTHREAD_IMPL_HEADER
>>> # include CYGBLD_ISO_PTHREAD_IMPL_HEADER
>>> # endif
>>> #endif
>>>
>>> #ifdef CYGINT_ISO_PTHREAD_MUTEX
>>> # ifdef CYGBLD_ISO_PTHREAD_MUTEX_HEADER
>>> # include CYGBLD_ISO_PTHREAD_MUTEX_HEADER
>>> # endif
>>> #endif
>>>
>>> #endif /* CYGONCE_ISO_PTHREAD_H multiple inclusion protection */
>>>
>>> /* EOF pthread.h */
>>>
>>> After that, i wrote this application using thread
>>>
>>> #include<pthread.h>
>>> #include<stdio.h>
>>> #define NUM_THREADS 5
>>>
>>> void *PrintHello(void *threadid)
>>> {
>>> long tid;
>>> tid = (long)threadid;
>>> printf("Hello World! It's me, thread #%ld!\n", tid);
>>> pthread_exit(NULL);
>>> }
>>>
>>> int main (int argc, char *argv[])
>>> {
>>> pthread_t threads[NUM_THREADS];
>>> int rc;
>>> long t;
>>> for(t=0; t<NUM_THREADS; t++){
>>> printf("In main: creating thread %ld\n", t);
>>> rc = pthread_create(&threads[t], NULL, PrintHello, (void *)t);
>>> if (rc){
>>> printf("ERROR; return code from pthread_create() is %d\n", rc);
>>> exit(-1);
>>> }
>>> }
>>>
>>> /* Last thing that main() should do */
>>> pthread_exit(NULL);
>>> }
>>>
>>> but when i build the application withe eCos library, i got these errors
>>>
>>> /STM3240G/fork$ make hello
>>> arm-eabi-gcc -c -o hello.o
>>> -I/home/st/config/standard_Posix_install/include -Wall -Wpointer-arith
>>> -Wstrict-prototypes -Wundef -Woverloaded-virtual -Wno-write-strings
>>> -mcpu=cortex-m3 -mthumb -g -O2 -ffunction-sections -fdata-sections -fno-rtti
>>> -fno-exceptions hello.c
>>> cc1: warning: command line option "-Woverloaded-virtual" is valid for
>>> C++/ObjC++ but not for C
>>> cc1: warning: command line option "-fno-rtti" is valid for C++/ObjC++ but
>>> not for C
>>> hello.c: In function ‘PrintHello’:
>>> hello.c:10: warning: implicit declaration of function ‘pthread_exit’
>>> hello.c: In function ‘main’:
>>> hello.c:15: error: ‘pthread_t’ undeclared (first use in this function)
>>> hello.c:15: error: (Each undeclared identifier is reported only once
>>> hello.c:15: error: for each function it appears in.)
>>> hello.c:15: error: expected ‘;’ before ‘threads’
>>> hello.c:20: warning: implicit declaration of function ‘pthread_create’
>>> hello.c:20: error: ‘threads’ undeclared (first use in this function)
>>> hello.c:23: warning: implicit declaration of function ‘exit’
>>> hello.c:23: warning: incompatible implicit declaration of built-in
>>> function ‘exit’
>>> make: *** [hello.o] Error 1
>>>
>>> First view is that the thread functions doesn't exist in the header
>>> thread.h, the configtool generate uncompleted headers,
>>>
>>> Please i need your help.
>>>
>>> Thanks a lot.
>>>
>>>
>>>
>>> --
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>>> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>>>
>
>
> --
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
>

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