def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
def _asm_callback(initialframedata):
self.walk_stack_from(initialframedata)
self._asm_callback = _asm_callback
self._shape_decompressor = ShapeDecompressor()
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
self.rootstacksize = sizeofaddr * gctransformer.root_stack_depth
# NB. 'self' is frozen, but we can use self.gcdata to store state
gcdata = self.gcdata
def incr_stack(n):
top = gcdata.root_stack_top
gcdata.root_stack_top = top + n*sizeofaddr
return top
self.incr_stack = incr_stack
def decr_stack(n):
top = gcdata.root_stack_top - n*sizeofaddr
gcdata.root_stack_top = top
return top
self.decr_stack = decr_stack
self.rootstackhook = gctransformer.root_stack_jit_hook
if self.rootstackhook is None:
def collect_stack_root(callback, gc, addr):
if gc.points_to_valid_gc_object(addr):
callback(gc, addr)
return sizeofaddr
self.rootstackhook = collect_stack_root
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
# NB. 'self' is frozen, but we can use self.gcdata to store state
gcdata = self.gcdata
def incr_stack(n):
top = gcdata.root_stack_top
gcdata.root_stack_top = top + n*sizeofaddr
return top
self.incr_stack = incr_stack
def decr_stack(n):
top = gcdata.root_stack_top - n*sizeofaddr
gcdata.root_stack_top = top
return top
self.decr_stack = decr_stack
root_iterator = get_root_iterator(gctransformer)
def walk_stack_root(callback, start, end):
root_iterator.setcontext(NonConstant(llmemory.NULL))
gc = self.gc
addr = end
while True:
addr = root_iterator.nextleft(gc, start, addr)
if addr == llmemory.NULL:
return
callback(gc, addr)
self.rootstackhook = walk_stack_root
self.shadow_stack_pool = ShadowStackPool(gcdata)
rsd = gctransformer.root_stack_depth
if rsd is not None:
self.shadow_stack_pool.root_stack_depth = rsd
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
def _asm_callback(initialframedata):
self.walk_stack_from(initialframedata)
self._asm_callback = _asm_callback
self._shape_decompressor = ShapeDecompressor()
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
# NB. 'self' is frozen, but we can use self.gcdata to store state
gcdata = self.gcdata
def incr_stack(n):
top = gcdata.root_stack_top
gcdata.root_stack_top = top + n * sizeofaddr
return top
self.incr_stack = incr_stack
def decr_stack(n):
top = gcdata.root_stack_top - n * sizeofaddr
gcdata.root_stack_top = top
return top
self.decr_stack = decr_stack
translator = gctransformer.translator
if (hasattr(translator, '_jit2gc')
and 'root_iterator' in translator._jit2gc):
root_iterator = translator._jit2gc['root_iterator']
def jit_walk_stack_root(callback, addr, end):
root_iterator.context = NonConstant(llmemory.NULL)
gc = self.gc
while True:
addr = root_iterator.next(gc, addr, end)
if addr == llmemory.NULL:
return
callback(gc, addr)
addr += sizeofaddr
self.rootstackhook = jit_walk_stack_root
else:
def default_walk_stack_root(callback, addr, end):
gc = self.gc
while addr != end:
if gc.points_to_valid_gc_object(addr):
callback(gc, addr)
addr += sizeofaddr
self.rootstackhook = default_walk_stack_root
self.shadow_stack_pool = ShadowStackPool(gcdata)
rsd = gctransformer.root_stack_depth
if rsd is not None:
self.shadow_stack_pool.root_stack_depth = rsd
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
def _asm_callback():
self.walk_stack_from()
self._asm_callback = _asm_callback
self._shape_decompressor = ShapeDecompressor()
if hasattr(gctransformer.translator, '_jit2gc'):
jit2gc = gctransformer.translator._jit2gc
self._extra_gcmapstart = jit2gc['gcmapstart']
self._extra_gcmapend = jit2gc['gcmapend']
else:
returns_null = lambda: llmemory.NULL
self._extra_gcmapstart = returns_null
self._extra_gcmapend = returns_null
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
def _asm_callback():
self.walk_stack_from()
self._asm_callback = _asm_callback
self._shape_decompressor = ShapeDecompressor()
if hasattr(gctransformer.translator, '_jit2gc'):
jit2gc = gctransformer.translator._jit2gc
self._extra_gcmapstart = jit2gc['gcmapstart']
self._extra_gcmapend = jit2gc['gcmapend']
else:
returns_null = lambda: llmemory.NULL
self._extra_gcmapstart = returns_null
self._extra_gcmapend = returns_null
def __init__(self, gctransformer):
BaseRootWalker.__init__(self, gctransformer)
# NB. 'self' is frozen, but we can use self.gcdata to store state
gcdata = self.gcdata
def incr_stack(n):
top = gcdata.root_stack_top
gcdata.root_stack_top = top + n*sizeofaddr
return top
self.incr_stack = incr_stack
def decr_stack(n):
top = gcdata.root_stack_top - n*sizeofaddr
gcdata.root_stack_top = top
return top
self.decr_stack = decr_stack
translator = gctransformer.translator
if (hasattr(translator, '_jit2gc') and
'root_iterator' in translator._jit2gc):
root_iterator = translator._jit2gc['root_iterator']
def jit_walk_stack_root(callback, addr, end):
root_iterator.context = NonConstant(llmemory.NULL)
gc = self.gc
while True:
addr = root_iterator.next(gc, addr, end)
if addr == llmemory.NULL:
return
callback(gc, addr)
addr += sizeofaddr
self.rootstackhook = jit_walk_stack_root
else:
def default_walk_stack_root(callback, addr, end):
gc = self.gc
while addr != end:
if gc.points_to_valid_gc_object(addr):
callback(gc, addr)
addr += sizeofaddr
self.rootstackhook = default_walk_stack_root
self.shadow_stack_pool = ShadowStackPool(gcdata)
rsd = gctransformer.root_stack_depth
if rsd is not None:
self.shadow_stack_pool.root_stack_depth = rsd
def setup_root_walker(self):
stackbase = self.allocate_stack()
ll_assert(bool(stackbase), "could not allocate root stack")
self.gcdata.root_stack_top = stackbase
self.gcdata.root_stack_base = stackbase
BaseRootWalker.setup_root_walker(self)
def setup_root_walker(self):
self.shadow_stack_pool.initial_setup()
BaseRootWalker.setup_root_walker(self)
def setup_root_walker(self):
self.shadow_stack_pool.initial_setup()
BaseRootWalker.setup_root_walker(self)