zturner added a comment. I've been experimenting with DIA locally and after some investigation I'm not sure this is going to be reliable. Let's say we have a class, we want the decl context containing the class. For example, on line 366. So we call `GetDeclContextContainingSymbol`. Despite what the MSDN documentation states, I'm pretty sure this is going to return a `PDBSymbolExe`. Worse, there is no guarantee that `getLexicalParent()` or `getClassParent()` will return the same thing twice. It all depends on how you obtained the object in the first place.
To make this concrete: Suppose you find the PDB Global Scope object, enumerate it and you find some function called `foo` at address 12345. If you call `getLexicalParent()` on it, it will be the Exe symbol (because the way you obtained it is by calling `ExeSymbol->findAllChildren`, so the Exe symbol is the parent). Now you take this address 12345 and call `Session->findSymbolByAddress(12345);` It returns a new symbol **with the same uid** but now suddenly the lexical parent is the compiland where the symbol is defined. I hacked up `llvm-pdbutil` to dump some output from a test exe I created, and it outputs this: Calling Session->findSymbolByAddress(1752) 3 `__raise_securityfailure` [Class: <null>, Lexical: 2 (Compiland 'f:\binaries\Intermediate\vctools\msvcrt.nativeproj_607447030\objd\x86\gs_report.obj')] Printing function signature 1 `` [Class: <null>, Lexical: 4 (Tag 1)] Calling Session->getSymbolById(3) 3 `__raise_securityfailure` [Class: <null>, Lexical: 2 (Compiland 'f:\binaries\Intermediate\vctools\msvcrt.nativeproj_607447030\objd\x86\gs_report.obj')] Enumerating all functions 3 `__raise_securityfailure` [Class: <null>, Lexical: 4 (Tag 1)] 5 `_RTC_CheckEsp` [Class: <null>, Lexical: 4 (Tag 1)] So notice that `__raise_securityfailure` has Lexical Parent of 4 when I enumerate functions, but a lexical parent of 2 (the matching compiland) if I obtain it by calling `findSymbolByAddress`. Furthermore, for types, it seems that this method will never return anything other than the Exe. I was not able to find any way to get a symbol corresponding to a type record that returned a compiland. Repository: rLLDB LLDB https://reviews.llvm.org/D51967 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
