def AllocPooled(self, ctx):
poolid = ctx.cpu.r_reg(REG_A0)
size = (ctx.cpu.r_reg(REG_D0) + 7) & -8
pc = self.get_callee_pc(ctx)
name = "AllocPooled(%06x)" % pc
if poolid in self._pools:
pool = self._pools[poolid]
mem = pool.AllocPooled(ctx.label_mgr, name, size)
log_exec.info("AllocPooled: from pool 0x%x size %d -> 0x%06x" %
(poolid, size, mem.addr))
return mem.addr
else:
raise VamosInternalError(
"AllocPooled: invalid memory pool: ptr=%06x" % poolid)
def FreeMem(self, ctx):
size = ctx.cpu.r_reg(REG_D0)
addr = ctx.cpu.r_reg(REG_A1)
if addr == 0 or size == 0:
log_exec.info("FreeMem: freeing NULL")
return
mb = self.alloc.get_memory(addr)
if mb != None:
log_exec.info("FreeMem: 0x%06x %d bytes -> %s" % (addr, size, mb))
self.alloc.free_memory(mb)
else:
raise VamosInternalError(
"FreeMem: Unknown memory to free: ptr=%06x size=%06x" %
(addr, size))
def WaitPort(self, ctx):
port_addr = ctx.cpu.r_reg(REG_A0)
log_exec.info("WaitPort: port=%06x" % (port_addr))
has_port = self.port_mgr.has_port(port_addr)
if not has_port:
raise VamosInternalError(
"WaitPort: on invalid Port (%06x) called!" % port_addr)
has_msg = self.port_mgr.has_msg(port_addr)
if not has_msg:
raise UnsupportedFeatureError(
"WaitPort on empty message queue called: Port (%06x)" %
port_addr)
msg_addr = self.port_mgr.get_msg(port_addr)
log_exec.info("WaitPort: got message %06x" % (msg_addr))
return msg_addr
def get_by_b_addr(self, b_addr, none_if_missing=False):
if b_addr == 0:
return None
else:
raw_lock = AccessStruct(self.mem, FileLockStruct, b_addr << 2)
key = raw_lock.r_s("fl_Key")
lock_key = self.keys[key]
log_lock.debug(
"lookup key in baddr=%08x: %s -> lock_key=%r", b_addr, key, lock_key
)
lock = lock_key.find_lock_by_baddr(b_addr)
if lock:
return lock
else:
raise VamosInternalError("lock not found by b_addr?!")