diff options
| -rw-r--r-- | lldb/examples/summaries/cocoa/objc_runtime.py | 48 |
1 files changed, 45 insertions, 3 deletions
diff --git a/lldb/examples/summaries/cocoa/objc_runtime.py b/lldb/examples/summaries/cocoa/objc_runtime.py index 6766bf307cc..c8864269322 100644 --- a/lldb/examples/summaries/cocoa/objc_runtime.py +++ b/lldb/examples/summaries/cocoa/objc_runtime.py @@ -244,9 +244,19 @@ class Class_Data_V2: def is_tagged(self): return False + def instance_size(self,align=False): + if self.is_valid() == False: + return None + if align: + unalign = self.instance_size(False) + if self.sys_params.lp64: + return ((unalign + 7) & ~7) % 0x100000000 + else: + return ((unalign + 3) & ~3) % 0x100000000 + else: + return self.rwt.rot.instanceSize + # runtime v1 is much less intricate than v2 and stores relevant information directly in the class_t object -# idea for improvement: read additional information just to check for faulty pointers (not too worried about it -# since v1 is only used for 32bit desktop development) class Class_Data_V1: def __init__(self,isa_pointer,params): if (isa_pointer != None) and (Utilities.is_valid_pointer(isa_pointer.GetValueAsUnsigned(),params.pointer_size, allow_tagged=False)): @@ -255,6 +265,15 @@ class Class_Data_V1: self.isaPointer = Utilities.read_child_of(self.valobj,0,self.sys_params.addr_ptr_type) self.superclassIsaPointer = Utilities.read_child_of(self.valobj,1*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) self.namePointer = Utilities.read_child_of(self.valobj,2*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + self.version = Utilities.read_child_of(self.valobj,3*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + self.info = Utilities.read_child_of(self.valobj,4*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + self.instanceSize = Utilities.read_child_of(self.valobj,5*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + # since we do not introspect ivars, methods, ... these four pointers need not be named in a meaningful way + # moreover, we do not care about their values, just that they are correctly aligned + self.ptr1 = Utilities.read_child_of(self.valobj,6*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + self.ptr2 = Utilities.read_child_of(self.valobj,7*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + self.ptr3 = Utilities.read_child_of(self.valobj,8*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) + self.ptr4 = Utilities.read_child_of(self.valobj,9*self.sys_params.pointer_size,self.sys_params.addr_ptr_type) self.check_valid() else: self.valid = False @@ -306,11 +325,26 @@ class Class_Data_V1: def __str__(self): return 'isaPointer = ' + hex(self.isaPointer) + "\n" + \ "superclassIsaPointer = " + hex(self.superclassIsaPointer) + "\n" + \ - "namePointer = " + hex(self.namePointer) + " --> " + self.name + "namePointer = " + hex(self.namePointer) + " --> " + self.name + \ + "version = " + hex(self.version) + "\n" + \ + "info = " + hex(self.info) + "\n" + \ + "instanceSize = " + hex(self.instanceSize) + "\n" def is_tagged(self): return False + def instance_size(self,align=False): + if self.is_valid() == False: + return None + if align: + unalign = self.instance_size(False) + if self.sys_params.lp64: + return ((unalign + 7) & ~7) % 0x100000000 + else: + return ((unalign + 3) & ~3) % 0x100000000 + else: + return self.instanceSize + class TaggedClass_Data: def __init__(self,pointer,params): self.valid = True @@ -371,6 +405,13 @@ class TaggedClass_Data: def is_tagged(self): return True + # it seems reasonable to say that a tagged pointer is the size of a pointer + def instance_size(self,align=False): + if self.is_valid() == False: + return None + return 8 if self.sys_params.lp64 else 4 + + class InvalidClass_Data: def __init__(self): pass @@ -498,3 +539,4 @@ class ObjCRuntime: if data.is_valid(): isa_cache.add_item(isa_value,data,ok_to_replace=True) return data + |
