def test_redirect_assembler(self, tmpdir):
looptoken = FakeCallAssemblerLoopToken(0x0)
newlooptoken = FakeCallAssemblerLoopToken(0x1234)
#
logger = jl.JitLogger()
file = tmpdir.join('binary_file')
file.ensure()
fd = file.open('wb')
jl.jitlog_init(fd.fileno())
logger.start_new_trace(self.make_metainterp_sd(), jd_name='jdname')
log_trace = logger.log_trace(jl.MARK_TRACE, None, None)
op = ResOperation(rop.CALL_ASSEMBLER_I, [], descr=looptoken)
log_trace.write([], [op])
jl.redirect_assembler(looptoken, newlooptoken, 0x1234)
#the next line will close 'fd', instead of logger.finish()
fd.close()
binary = file.read()
opnum = jl.encode_le_16bit(rop.CALL_ASSEMBLER_I)
id_looptoken = compute_unique_id(looptoken)
new_id_looptoken = compute_unique_id(newlooptoken)
end = jl.MARK_RESOP_DESCR + opnum + jl.encode_str('i0,looptoken') + \
jl.encode_le_addr(id_looptoken) + jl.encode_str('') + \
jl.MARK_REDIRECT_ASSEMBLER + \
jl.encode_le_addr(id_looptoken) + \
jl.encode_le_addr(new_id_looptoken) + \
jl.encode_le_addr(newlooptoken._ll_function_addr)
assert binary.endswith(end)
def test_redirect_assembler(self, tmpdir, metainterp_sd):
looptoken = FakeCallAssemblerLoopToken(0x0)
newlooptoken = FakeCallAssemblerLoopToken(0x1234)
#
logger = jl.JitLogger()
file = tmpdir.join('binary_file')
file.ensure()
fd = file.open('wb')
jl.jitlog_init(fd.fileno())
logger.start_new_trace(metainterp_sd, jd_name='jdname')
log_trace = logger.log_trace(jl.MARK_TRACE, None, None)
op = ResOperation(rop.CALL_ASSEMBLER_I, [], descr=looptoken)
log_trace.write([], [op])
jl.redirect_assembler(looptoken, newlooptoken, 0x1234)
#the next line will close 'fd', instead of logger.finish()
fd.close()
binary = file.read()
opnum = jl.encode_le_16bit(rop.CALL_ASSEMBLER_I)
id_looptoken = compute_unique_id(looptoken)
new_id_looptoken = compute_unique_id(newlooptoken)
end = jl.MARK_RESOP_DESCR + opnum + jl.encode_str('i0,looptoken') + \
jl.encode_le_addr(id_looptoken) + jl.encode_str('') + \
jl.MARK_REDIRECT_ASSEMBLER + \
jl.encode_le_addr(id_looptoken) + \
jl.encode_le_addr(new_id_looptoken) + \
jl.encode_le_addr(newlooptoken._ll_function_addr)
assert binary.endswith(end)
def test_redirect_assembler(self, tmpdir, metainterp_sd):
looptoken = FakeCallAssemblerLoopToken(0x0)
newlooptoken = FakeCallAssemblerLoopToken(0x1234)
#
logger = jl.JitLogger()
file = tmpdir.join('binary_file')
file.ensure()
# use rfile instead of file.open since the host python and compiled
# code may use different runtime libraries (win32 visual2008 vs.
# visual2019 for instance
rfile = create_file(str(file), 'wb')
with SuppressIPH():
jl.jitlog_init(rfile.fileno())
logger.start_new_trace(metainterp_sd, jd_name='jdname')
log_trace = logger.log_trace(jl.MARK_TRACE, None, None)
op = ResOperation(rop.CALL_ASSEMBLER_I, [], descr=looptoken)
log_trace.write([], [op])
jl.redirect_assembler(looptoken, newlooptoken, 0x1234)
#the next line will close the 'fd', instead of logger.finish()
rfile.close()
binary = file.read()
opnum = jl.encode_le_16bit(rop.CALL_ASSEMBLER_I)
id_looptoken = compute_unique_id(looptoken)
new_id_looptoken = compute_unique_id(newlooptoken)
end = jl.MARK_RESOP_DESCR + opnum + jl.encode_str('i0,looptoken') + \
jl.encode_le_addr(id_looptoken) + jl.encode_str('') + \
jl.MARK_REDIRECT_ASSEMBLER + \
jl.encode_le_addr(id_looptoken) + \
jl.encode_le_addr(new_id_looptoken) + \
jl.encode_le_addr(newlooptoken._ll_function_addr)
assert binary.endswith(end)
def redirect_call_assembler(self, oldlooptoken, newlooptoken):
# some minimal sanity checking
old_nbargs = oldlooptoken.compiled_loop_token._debug_nbargs
new_nbargs = newlooptoken.compiled_loop_token._debug_nbargs
assert old_nbargs == new_nbargs
oldadr = oldlooptoken._ll_function_addr
target = newlooptoken._ll_function_addr
# copy frame-info data
baseofs = self.cpu.get_baseofs_of_frame_field()
newlooptoken.compiled_loop_token.update_frame_info(
oldlooptoken.compiled_loop_token, baseofs)
# we overwrite the instructions at the old _ll_function_addr
# to start with a JMP to the new _ll_function_addr.
mc = InstrBuilder()
mc.load_imm(r.SCRATCH, target)
mc.BCR(c.ANY, r.SCRATCH)
mc.copy_to_raw_memory(oldadr)
#
jl.redirect_assembler(oldlooptoken, newlooptoken, newlooptoken.number)
