static void
expand (struct mempool *pool)
{
size_t size;
char *mem;
size = pool->chunk_size;
GET_MEMORY (mem, size);
if (!mem)
{
size = UNW_ALIGN(pool->obj_size, pg_size);
GET_MEMORY (mem, size);
if (!mem)
{
/* last chance: try to allocate one object from the SOS memory */
size = pool->obj_size;
mem = sos_alloc (size);
}
}
add_memory (pool, mem, size, pool->obj_size);
}
static int
get_kernel_table (unw_dyn_info_t *di)
{
struct ia64_table_entry *ktab, *etab;
size_t size;
Debug (16, "getting kernel table");
size = getunwind (NULL, 0);
ktab = sos_alloc (size);
if (!ktab)
{
Dprintf (__FILE__".%s: failed to allocate %zu bytes",
__FUNCTION__, size);
return -UNW_ENOMEM;
}
getunwind (ktab, size);
/* Determine length of kernel's unwind table & relocate its entries. */
for (etab = ktab; etab->start_offset; ++etab)
etab->info_offset += (uint64_t) ktab;
di->format = UNW_INFO_FORMAT_TABLE;
di->gp = 0;
di->start_ip = ktab[0].start_offset;
di->end_ip = etab[-1].end_offset;
di->u.ti.name_ptr = (unw_word_t) "<kernel>";
di->u.ti.segbase = 0;
di->u.ti.table_len = ((char *) etab - (char *) ktab) / sizeof (unw_word_t);
di->u.ti.table_data = (unw_word_t *) ktab;
Debug (16, "found table `%s': [%lx-%lx) segbase=%lx len=%lu\n",
(char *) di->u.ti.name_ptr, di->start_ip, di->end_ip,
di->u.ti.segbase, di->u.ti.table_len);
return 0;
}
