SimpleIDE and multiple .cogc files

Mark Mara

I am having a problem using SimpleIDE to build a project that contains three .cogc files. The compiler seems to be only generating a global symbol (_load_start_FILENAME_cog ) for the first .cogc file.

When the project contains only one .cogc file it works fine. When I add a second .cogc file I get an unresolved reference error. For example, if I add a file, cogA.cogc, to the project. I can reference it using _load_start_cogA_cog. However, if I add a second .cogc file, cogB.cogc, I get an unresolved reference error when I try to reference _load_start_cogB_cog.

Is there an example of using SimpleIDE to build a project containing more than one .cogc file?

Thanks.

jazzed

Would you be able to post your example so I can have a look?

Thanks.
--Steve

Mark Mara

jazzed wrote: »

Would you be able to post your example so I can have a look?

Thanks.
--Steve

Thanks for offering to take a look.

main routine: cog_test.c

/**
 * This is the main cog_test program file.
 */
#include <stdio.h>
#include <unistd.h>
#include <propeller.h>
#include "cog_test.h"
#include "simpletools.h"                      // Include simpletools library 

/* control block for cogA */
struct {
    unsigned stack[STACK_SIZE_A];
    volatile struct cogA_mailbox A;
} parA;

/* control block for cogB */
struct {
    unsigned stack[STACK_SIZE_B];
    volatile struct cogB_mailbox B;
} parB;

/* start cogA */
void startA(volatile void *parptr)
{
    extern unsigned int _load_start_cogA_cog[];
#if defined(__PROPELLER_XMM__) || defined(__PROPELLER_XMMC__)
    load_cog_driver_xmm(_load_start_cogA_cog, 496, (uint32_t *)parptr);
#else
    cognew(_load_start_cogA_cog, parptr);
#endif
}

/* start cogB */
void startB(volatile void *parptr)
{
    extern unsigned int _load_start_cogB_cog[];
#if defined(__PROPELLER_XMM__) || defined(__PROPELLER_XMMC__)
    load_cog_driver_xmm(_load_start_cogB_cog, 496, (uint32_t *)parptr);
#else
    cognew(_load_start_cogB_cog, parptr);
#endif
}

int main(void)
{
    sleep(2);  
/* start the A cog */
    printf("starting cogA\n");
    startA(&parA.A);
    printf("%s\n",parA.A.cog_message);

/* start the B cog */
    printf("starting cogB\n");
    startB(&parB.B);
    printf("%s\n",parB.B.cog_message);

/* loop forever */
    while(1) {
        sleep(2);
        printf("cogA: %s\n",parA.A.cog_message);
        printf("cogB: %s\n",parB.B.cog_message);
    }
    return 0;
}

header file: cog_test.h

#ifndef __COG_TEST_H__
#define __COG_TEST_H__

#define STACK_SIZE_A 16
#define STACK_SIZE_B 16
#define COG_MESSAGE_SIZE    128

struct cogA_mailbox {
    int     data;
    char    cog_message[COG_MESSAGE_SIZE];
};

struct cogB_mailbox {
    int     data;
    char    cog_message[COG_MESSAGE_SIZE];
};

#endif

first .cogc file: cogA.cogc

#include <propeller.h>
#include "cog_test.h"

_NATIVE
void main (struct cogA_mailbox *m)
{
    strcpy(m->cog_message,"cogA started");
    for(;;) strcpy(m->cog_message,"cogA running");
}

second .cogc file: cogB.cogc

#include <propeller.h>
#include "cog_test.h"

_NATIVE
void main (struct cogB_mailbox *m)
{
    strcpy(m->cog_message,"cogB started");
    for(;;) strcpy(m->cog_message,"cogB running");
}

If I comment out the cogB references it launches cogA and seems to work fine.

jazzed

Hmm. Compiles and runs fine for me. Maybe your project is a little different.

Mark Mara

Very perplexing. I unzip yours and it runs fine.

Thanks.

jazzed

Open the two .side files with notepad or wordpad and tell me what the differences are.

Mark Mara

I changed my compile and link options to match yours and it started working. I was not good about changing one parameter at a time so I can't tell you exactly the cause.

I am happy. If it would be of any value to you I could probably restore from a backup and compare the .side files.

Thanks for your help.

jazzed

I found it.

Apparently with Create Project Library checked, the .cogc/.cog files do not get linked.

Adding an issue to google code thanks. Do you mind if I attach your example to the issue?

blindstar

jazzed wrote: »

I found it.

Do you mind if I attach your example to the issue?

Feel free.

Thanks for your help.

jazzed

Hi,

I've added notes regarding this issue here: https://code.google.com/p/propside/issues/detail?id=184

The notes demonstrate what it takes to ensure that the cogc code is included in a library when Create Project Library is selected in SimpleIDE.