1 files changed, 79 insertions, 0 deletions
diff --git a/src/miasm/arch/aarch64/jit.py b/src/miasm/arch/aarch64/jit.py
new file mode 100644
index 00000000..f71ecae4
--- /dev/null
+++ b/src/miasm/arch/aarch64/jit.py
@@ -0,0 +1,79 @@
+from builtins import range
+import logging
+
+from miasm.jitter.jitload import Jitter, named_arguments
+from miasm.core.utils import pck64, upck64
+from miasm.arch.aarch64.sem import Lifter_Aarch64b, Lifter_Aarch64l
+
+log = logging.getLogger('jit_aarch64')
+hnd = logging.StreamHandler()
+hnd.setFormatter(logging.Formatter("[%(levelname)-8s]: %(message)s"))
+log.addHandler(hnd)
+log.setLevel(logging.CRITICAL)
+
+class jitter_aarch64l(Jitter):
+    max_reg_arg = 8
+
+    def __init__(self, loc_db, *args, **kwargs):
+        Jitter.__init__(self, Lifter_Aarch64l(loc_db), *args, **kwargs)
+        self.vm.set_little_endian()
+
+    def push_uint64_t(self, value):
+        self.cpu.SP -= 8
+        self.vm.set_mem(self.cpu.SP, pck64(value))
+
+    def pop_uint64_t(self):
+        value = self.vm.get_u64(self.cpu.SP)
+        self.cpu.SP += 8
+        return value
+
+    def get_stack_arg(self, index):
+        return self.vm.get_u64(self.cpu.SP + 8 * index)
+
+    # calling conventions
+
+    @named_arguments
+    def func_args_stdcall(self, n_args):
+        args = []
+        for i in range(min(n_args, self.max_reg_arg)):
+            args.append(getattr(self.cpu, 'X%d' % i))
+        for i in range(max(0, n_args - self.max_reg_arg)):
+            args.append(self.get_stack_arg(i))
+        ret_ad = self.cpu.LR
+        return ret_ad, args
+
+    def func_ret_stdcall(self, ret_addr, ret_value=None):
+        self.pc = self.cpu.PC = ret_addr
+        if ret_value is not None:
+            self.cpu.X0 = ret_value
+        return True
+
+    def get_arg_n_stdcall(self, index):
+        if index < self.max_reg_arg:
+            arg = self.cpu.get_gpreg()['X%d' % index]
+        else:
+            arg = self.get_stack_arg(index - self.max_reg_arg)
+        return arg
+
+    def func_prepare_stdcall(self, ret_addr, *args):
+        for index in range(min(len(args), 4)):
+            setattr(self.cpu, 'X%d' % index, args[index])
+        for index in range(4, len(args)):
+            self.vm.set_mem(self.cpu.SP + 8 * (index - 4), pck64(args[index]))
+        self.cpu.LR = ret_addr
+
+    func_args_systemv = func_args_stdcall
+    func_ret_systemv = func_ret_stdcall
+    get_arg_n_systemv = get_arg_n_stdcall
+    func_prepare_systemv = func_prepare_stdcall
+
+    def init_run(self, *args, **kwargs):
+        Jitter.init_run(self, *args, **kwargs)
+        self.cpu.PC = self.pc
+
+
+class jitter_aarch64b(jitter_aarch64l):
+
+    def __init__(self, loc_db, *args, **kwargs):
+        Jitter.__init__(self, Lifter_Aarch64b(loc_db), *args, **kwargs)
+        self.vm.set_big_endian()