def alloc_mem(self, size):
"""allocate memory and return addr or 0 if no more memory"""
# align size to 4 bytes
size = (size + 3) & ~3
# find best free chunk
chunk, left = self._find_best_chunk(size)
# out of memory?
if chunk == None:
log_mem_alloc.warn("[alloc: NO MEMORY for %06x bytes]", size)
return 0
# remove chunk from free list
# is something left?
addr = chunk.addr
if left == 0:
self._remove_chunk(chunk)
else:
left_chunk = MemoryChunk(addr + size, left)
self._replace_chunk(chunk, left_chunk)
# add to valid allocs map
self.addrs[addr] = size
self.free_bytes -= size
# erase memory
self.mem.clear_block(addr, size, 0)
log_mem_alloc.info("[alloc @%06x-%06x: %06x bytes] %s", addr, addr+size, size, self._stat_info())
return addr
def alloc_mem(self, size):
"""allocate memory and return addr or 0 if no more memory"""
# align size to 4 bytes
size = (size + 3) & ~3
# find best free chunk
chunk, left = self._find_best_chunk(size)
# out of memory?
if chunk == None:
log_mem_alloc.warn("[alloc: NO MEMORY for %06x bytes]", size)
return 0
# remove chunk from free list
# is something left?
addr = chunk.addr
if left == 0:
self._remove_chunk(chunk)
else:
left_chunk = MemoryChunk(addr + size, left)
self._replace_chunk(chunk, left_chunk)
# add to valid allocs map
self.addrs[addr] = size
self.free_bytes -= size
# erase memory
self.mem.clear_block(addr, size, 0)
log_mem_alloc.info("[alloc @%06x-%06x: %06x bytes] %s", addr, addr + size, size, self._stat_info())
return addr
def _dump_orphan(self, addr, size):
log_mem_alloc.warn("orphan: [@%06x +%06x %06x]" %
(addr, size, addr + size))
if self.label_mgr != None:
labels = self.label_mgr.get_intersecting_labels(addr, size)
for l in labels:
log_mem_alloc.warn("-> %s", l)
def _dump_orphan(self, addr, size):
log_mem_alloc.warn("orphan: [@%06x +%06x %06x]" % (addr, size, addr + size))
labels = self.label_mgr.get_intersecting_labels(addr, size)
for l in labels:
log_mem_alloc.warn("-> %s", l)