[lwip-users] Error in lwip_init() function

[joa1101]

Hello,

I am using lwip 2.0.2 version, and I am trying to port lwIP stack into ERIKA
enterprise RTOS to a Aurix Tricore TC297A-step board. I am very new to lwIP
so I really know not how to interprete this error.

When I try to initialize lwIP stack with lwip_init() function the board
stops working. While debugging, I discovered that function memp_init is the
part which halts the board from working, and the line in memp_init that
causes the errors is this particular one:

memp = *desc->tab;

I had same problem with previous versions of lwip aswell. After crashing,
debugger ends in intrinsic function:

IFX_INLINE void __debug(void)
{
    __asm__ volatile ("debug" : : : "memory");
}

Here is the memp_init function body:

void
memp_init(void)
{
  u16_t i;

  /* for every pool: */
  for (i = 0; i < LWIP_ARRAYSIZE(memp_pools); i++) {
    memp_init_pool(memp_pools[i]);

#if LWIP_STATS && MEMP_STATS
    lwip_stats.memp[i] = memp_pools[i]->stats;
#endif
  }

#if MEMP_OVERFLOW_CHECK >= 2
  /* check everything a first time to see if it worked */
  memp_overflow_check_all();
#endif /* MEMP_OVERFLOW_CHECK >= 2 */
}

static void*
#if !MEMP_OVERFLOW_CHECK
do_memp_malloc_pool(const struct memp_desc *desc)
#else
do_memp_malloc_pool_fn(const struct memp_desc *desc, const char* file, const
int line)
#endif
{
  struct memp *memp;
  SYS_ARCH_DECL_PROTECT(old_level);

#if MEMP_MEM_MALLOC
  memp = (struct memp *)mem_malloc(MEMP_SIZE + MEMP_ALIGN_SIZE(desc->size));
  SYS_ARCH_PROTECT(old_level);
#else /* MEMP_MEM_MALLOC */
  SYS_ARCH_PROTECT(old_level);

  memp = *desc->tab;
#endif /* MEMP_MEM_MALLOC */

  if (memp != NULL) {
#if !MEMP_MEM_MALLOC
#if MEMP_OVERFLOW_CHECK == 1
    memp_overflow_check_element_overflow(memp, desc);
    memp_overflow_check_element_underflow(memp, desc);
#endif /* MEMP_OVERFLOW_CHECK */

    *desc->tab = memp->next;
#if MEMP_OVERFLOW_CHECK
    memp->next = NULL;
#endif /* MEMP_OVERFLOW_CHECK */
#endif /* !MEMP_MEM_MALLOC */
#if MEMP_OVERFLOW_CHECK
    memp->file = file;
    memp->line = line;
#if MEMP_MEM_MALLOC
    memp_overflow_init_element(memp, desc);
#endif /* MEMP_MEM_MALLOC */
#endif /* MEMP_OVERFLOW_CHECK */
    LWIP_ASSERT("memp_malloc: memp properly aligned",
                ((mem_ptr_t)memp % MEM_ALIGNMENT) == 0);
#if MEMP_STATS
    desc->stats->used++;
    if (desc->stats->used > desc->stats->max) {
      desc->stats->max = desc->stats->used;
    }
#endif
    SYS_ARCH_UNPROTECT(old_level);
    /* cast through u8_t* to get rid of alignment warnings */
    return ((u8_t*)memp + MEMP_SIZE);
  } else {
    LWIP_DEBUGF(MEMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("memp_malloc: out of
memory in pool %s\n", desc->desc));
#if MEMP_STATS
    desc->stats->err++;
#endif
  }

  SYS_ARCH_UNPROTECT(old_level);
  return NULL;
}

Thank you in advance.
Josip



--
View this message in context: 
http://lwip.100.n7.nabble.com/Error-in-lwip-init-function-tp30137.html
Sent from the lwip-users mailing list archive at Nabble.com.