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Fixed a crash in objc_refs caused by improper

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resolution of class_getSuperclass.

<rdar://problem/14662686>

llvm-svn: 188240
This commit is contained in:
Sean Callanan 2013-08-13 00:53:33 +00:00
parent da71ea2598
commit f09a3dbf92
1 changed files with 4 additions and 2 deletions
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6
lldb/examples/darwin/heap_find/heap.py
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@ -1033,7 +1033,9 @@ compare_callback_t compare_callback = [](const void *a, const void *b) -> int {
if (a_ptr > b_ptr) return +1;
return 0;
};
typedef Class (*class_getSuperclass_type)(void *isa);
range_callback_t range_callback = [](task_t task, void *baton, unsigned type, uintptr_t ptr_addr, uintptr_t ptr_size) -> void {
class_getSuperclass_type class_getSuperclass_impl = (class_getSuperclass_type)class_getSuperclass;
callback_baton_t *info = (callback_baton_t *)baton;
if (sizeof(Class) <= ptr_size) {
Class *curr_class_ptr = (Class *)ptr_addr;
@ -1049,13 +1051,13 @@ range_callback_t range_callback = [](task_t task, void *baton, unsigned type, ui
if (info->isa == isa)
match = true;
else { // if (info->objc.match_superclasses) {
Class super = (Class)class_getSuperclass(isa);
Class super = class_getSuperclass_impl(isa);
while (super) {
if (super == info->isa) {
match = true;
break;
}
super = (Class)class_getSuperclass(super);
super = class_getSuperclass_impl(super);
}
}
}