devices/runtime: register eh_raise service

artiq/devices/runtime.py

@@ -52,6 +52,8 @@ def _str_to_functype(s):
 class LinkInterface:
     def init_module(self, module):
         self.llvm_module = module.llvm_module
+
+        # syscalls
         self.var_arg_fixcount = dict()
         for func_name, func_type_str in _syscalls.items():
             var_arg_fixcount, func_type = _str_to_functype(func_type_str)
@@ -59,6 +61,10 @@ class LinkInterface:
                 self.var_arg_fixcount[func_name] = var_arg_fixcount
             self.llvm_module.add_function(func_type, "__syscall_"+func_name)
 
+        # eh
+        func_type = lc.Type.function(lc.Type.void(), [lc.Type.int()])
+        self.llvm_module.add_function(func_type, "__eh_raise")
+
     def syscall(self, syscall_name, args, builder):
         r = _chr_to_value[_syscalls[syscall_name][-1]]()
         if builder is not None:
@@ -73,6 +79,12 @@ class LinkInterface:
             r.auto_store(builder, builder.call(llvm_function, args))
         return r
 
+    def build_raise(self, eid, builder):
+        if builder is not None:
+            llvm_function = self.llvm_module.get_function_named(
+                "__eh_raise")
+            builder.call(llvm_function, [lc.Constant.int(lc.Type.int(), eid)])
+
 
 def _debug_dump_obj(obj):
     try: