https://llvm.org/bugs/show_bug.cgi?id=31706
Bug ID: 31706
Summary: SBTarget::FindTypes does not find resolved function
pointer types
Product: lldb
Version: unspecified
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: lldb-...@lists.llvm.org
Reporter: alexandru.croi...@qt.io
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 17872
--> https://llvm.org/bugs/attachment.cgi?id=17872&action=edit
Example code which shows the issue regarding FindTypes
SBTarget::FindTypes does not find resolved function pointer types, which were
declared as function pointer typedefs.
Consider the code:
typedef struct _type {
int value;
} MyType;
typedef void (*FunctionPointer)(MyType*);
void function(MyType* t) {
(void) t;
}
int main(int argc, char* argv[]) {
MyType t;
FunctionPointer fp = &function;
fp(&t);
return 0;
}
Compile with clang++ -O0 -g ./main.cpp
Run lldb ./a.out and go into python script mode, then:
>>> lldb.target.FindTypes("FunctionPointer").GetSize()
1
>>> lldb.target.FindTypes("void (*)(MyType*)").GetSize()
0
>>> lldb.target.FindTypes("void (*)(MyType *)").GetSize()
0
But if I do:
>>> for t in lldb.target.GetModuleAtIndex(0).GetTypes():
... print t.GetName()
I get:
FunctionPointer
void (*)(MyType *)
MyType *
MyType
_type
void (MyType *)
main
char **
char *
char
int
which obviously contains "void (*)(MyType *)" which I have searched for
previously.
dwardump-ing the executable dSYM I can see DWARF data for the typedef, but not
for the underlying type of the typedef.
Is this a bug? Should FindTypes find resolved typedefs? Or is this intended
behavior?
(lldb) version
lldb-360.99.0
clang revision a41b64721d4be78870711cbb7b5af156a9e1f4ad
llvm revision 3c45ea423a9e3d27eaf77af0639a73e0c56d9a35
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