def branch_on_watched(
bs, watched, func
): # should have an argument on whether to merge like unlift does (unlift versions should be merged too)
flow = bs.flow.clone()
call_stack = list(bs.call_stack)
branches = {} # value -> string
def watcher(new_value):
if not branches:
branches[value] = bs.program.render_code[label.
position:label.position +
patch_len]
if new_value in branches:
data = branches[value]
else:
prgm = get_redirection(lambda rdi: get_jmp(
compiler.translate("branch_on_watched",
flow,
stack=call_stack,
this=func(new_value))))
data = prgm.render_code
prgm.render_code = OffsetListProxy(bs.program.render_code,
label.position)
branches[value] = data
bs.program.render_code[label.position:label.position +
patch_len] = data
value = watched.get_and_watch(watcher)
label = bs.program.get_unique_label()
bs.code += label
# remove later
for i in xrange(patch_len):
bs.code += isa.nop()
func(value)(bs)
def branch_on_watched(bs, watched, func): # should have an argument on whether to merge like unlift does (unlift versions should be merged too)
flow = bs.flow.clone()
call_stack = list(bs.call_stack)
branches = {} # value -> string
def watcher(new_value):
if not branches:
branches[value] = bs.program.render_code[label.position:label.position + patch_len]
if new_value in branches:
data = branches[value]
else:
prgm = get_redirection(lambda rdi: get_jmp(compiler.translate("branch_on_watched", flow, stack=call_stack, this=func(new_value))))
data = prgm.render_code
prgm.render_code = OffsetListProxy(bs.program.render_code, label.position)
branches[value] = data
bs.program.render_code[label.position:label.position + patch_len] = data
value = watched.get_and_watch(watcher)
label = bs.program.get_unique_label()
bs.code += label
# remove later
for i in xrange(patch_len):
bs.code += isa.nop()
func(value)(bs)
def _align_stream(self, length, align):
return [x86.nop() for i in xrange(0, align - (length % align))]
def _align_stream(self, length, align): return [x86.nop() for i in xrange(0, align - (length % align))]