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

[Fabrizio Carrai <f.carrai@libero.it>]

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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