def test_offsetof_nogc():
ARR = lltype.Array(lltype.Signed)
offsetx = llmemory.arraylengthoffset(ARR)
offsety = llmemory.itemoffsetof(ARR, 0)
ARR2 = lltype.GcArray(lltype.Signed)
offsetx2 = llmemory.arraylengthoffset(ARR2)
offsety2 = llmemory.itemoffsetof(ARR2, 0)
def f():
a = lltype.malloc(ARR, 5, flavor='raw')
a2 = lltype.malloc(ARR2, 6, flavor='raw')
a2[0] = 1
a[0] = 3
adr = llmemory.cast_ptr_to_adr(a)
adr2 = llmemory.cast_ptr_to_adr(a2)
return ((adr + offsetx).signed[0] * 1000 +
(adr + offsety).signed[0] * 100 +
(adr2 + offsetx2).signed[0] * 10 + (adr2 + offsety2).signed[0])
fn = compile(f, [])
res = fn()
assert res == 5361
def test_offsetof_nogc():
ARR = lltype.Array(lltype.Signed)
offsetx = llmemory.arraylengthoffset(ARR)
offsety = llmemory.itemoffsetof(ARR, 0)
ARR2 = lltype.GcArray(lltype.Signed)
offsetx2 = llmemory.arraylengthoffset(ARR2)
offsety2 = llmemory.itemoffsetof(ARR2, 0)
def f():
a = lltype.malloc(ARR, 5, flavor='raw')
a2 = lltype.malloc(ARR2, 6, flavor='raw')
a2[0] = 1
a[0] = 3
adr = llmemory.cast_ptr_to_adr(a)
adr2 = llmemory.cast_ptr_to_adr(a2)
return ((adr + offsetx).signed[0] * 1000 +
(adr + offsety).signed[0] * 100 +
(adr2 + offsetx2).signed[0] * 10 + (adr2 + offsety2).signed[0])
fn = compile(f, [])
res = fn()
assert res == 5361
# the actual frame
('jf_frame', lltype.Array(lltype.Signed)),
# note that we keep length field, because it's crucial to have the data
# about GCrefs here and not in frame info which might change
adtmeths = {
'allocate': jitframe_allocate,
'resolve': jitframe_resolve,
},
rtti = True,
))
@specialize.memo()
def getofs(name):
return llmemory.offsetof(JITFRAME, name)
GCMAPLENGTHOFS = llmemory.arraylengthoffset(GCMAP)
GCMAPBASEOFS = llmemory.itemoffsetof(GCMAP, 0)
BASEITEMOFS = llmemory.itemoffsetof(JITFRAME.jf_frame, 0)
LENGTHOFS = llmemory.arraylengthoffset(JITFRAME.jf_frame)
SIGN_SIZE = llmemory.sizeof(lltype.Signed)
UNSIGN_SIZE = llmemory.sizeof(lltype.Unsigned)
STACK_DEPTH_OFS = getofs('jf_extra_stack_depth')
def jitframe_trace(gc, obj_addr, callback, arg):
gc._trace_callback(callback, arg, obj_addr + getofs('jf_descr'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_force_descr'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_savedata'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_guard_exc'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_forward'))
if IS_32BIT:
# note that we keep length field, because it's crucial to have the data
# about GCrefs here and not in frame info which might change
adtmeths={
'allocate': jitframe_allocate,
'resolve': jitframe_resolve,
},
rtti=True,
))
@specialize.memo()
def getofs(name):
return llmemory.offsetof(JITFRAME, name)
GCMAPLENGTHOFS = llmemory.arraylengthoffset(GCMAP)
GCMAPBASEOFS = llmemory.itemoffsetof(GCMAP, 0)
BASEITEMOFS = llmemory.itemoffsetof(JITFRAME.jf_frame, 0)
LENGTHOFS = llmemory.arraylengthoffset(JITFRAME.jf_frame)
SIGN_SIZE = llmemory.sizeof(lltype.Signed)
UNSIGN_SIZE = llmemory.sizeof(lltype.Unsigned)
def jitframe_trace(gc, obj_addr, callback, arg):
gc._trace_callback(callback, arg, obj_addr + getofs('jf_descr'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_force_descr'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_savedata'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_guard_exc'))
gc._trace_callback(callback, arg, obj_addr + getofs('jf_forward'))
if IS_32BIT:
