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fixing a syntax error with objc_runtime.py 

llvm-svn: 151304
This commit is contained in:
Enrico Granata 2012-02-23 23:26:48 +00:00
parent 38b31619f6
commit b8cbe9cb4f
1 changed files with 45 additions and 3 deletions
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48
lldb/examples/summaries/cocoa/objc_runtime.py
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@ -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