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devices/runtime: add more eh functions

This commit is contained in:
Sebastien Bourdeauducq 2014-09-23 16:25:41 +08:00
parent d1085449aa
commit 8b769a0417
1 changed files with 33 additions and 7 deletions
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40
artiq/devices/runtime.py
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@ -61,9 +61,19 @@ class LinkInterface:
self.var_arg_fixcount[func_name] = var_arg_fixcount self.var_arg_fixcount[func_name] = var_arg_fixcount
self.llvm_module.add_function(func_type, "__syscall_"+func_name) self.llvm_module.add_function(func_type, "__syscall_"+func_name)
# eh # exception handling
func_type = lc.Type.function(lc.Type.pointer(lc.Type.int(8)), [])
self.llvm_module.add_function(func_type, "__eh_push")
func_type = lc.Type.function(lc.Type.void(), [lc.Type.int()]) func_type = lc.Type.function(lc.Type.void(), [lc.Type.int()])
self.llvm_module.add_function(func_type, "__eh_raise") self.llvm_module.add_function(func_type, "__eh_pop")
func_type = lc.Type.function(lc.Type.int(), [])
self.llvm_module.add_function(func_type, "__eh_getid")
func_type = lc.Type.function(lc.Type.void(), [lc.Type.int()])
function = self.llvm_module.add_function(func_type, "__eh_raise")
function.add_attribute(lc.ATTR_NO_RETURN)
def build_syscall(self, syscall_name, args, builder): def build_syscall(self, syscall_name, args, builder):
r = _chr_to_value[_syscalls[syscall_name][-1]]() r = _chr_to_value[_syscalls[syscall_name][-1]]()
@ -79,11 +89,27 @@ class LinkInterface:
r.auto_store(builder, builder.call(llvm_function, args)) r.auto_store(builder, builder.call(llvm_function, args))
return r return r
def build_raise(self, eid, builder): def build_catch(self, builder):
if builder is not None: eh_push = self.llvm_module.get_function_named("__eh_push")
llvm_function = self.llvm_module.get_function_named( setjmp = lc.Function.intrinsic(self.llvm_module,
"__eh_raise") lc.INTR_EH_SJLJ_SETJMP, [])
builder.call(llvm_function, [lc.Constant.int(lc.Type.int(), eid)]) jmpbuf = builder.call(eh_push, [])
exception_occured = builder.call(setjmp, [jmpbuf])
return builder.icmp(lc.ICMP_NE,
exception_occured,
lc.Constant.int(lc.Type.int(), 0))
def build_pop(self, builder, levels):
eh_pop = self.llvm_module.get_function_named("__eh_pop")
builder.call(eh_pop, [lc.Constant.int(lc.Type.int(), levels)])
def build_getid(self, builder):
eh_getid = self.llvm_module.get_function_named("__eh_getid")
return builder.call(eh_getid, [])
def build_raise(self, builder, eid):
eh_raise = self.llvm_module.get_function_named("__eh_raise")
builder.call(eh_raise, [eid])
def _debug_dump_obj(obj): def _debug_dump_obj(obj):