diff options
| author | George Rimar <grimar@accesssoftek.com> | 2017-06-01 07:47:56 +0000 |
|---|---|---|
| committer | George Rimar <grimar@accesssoftek.com> | 2017-06-01 07:47:56 +0000 |
| commit | b429e398f20bd2a1b34743512422fa3a48ae9757 (patch) | |
| tree | 563597881ee360be638713bf44b68d5a885418ef /lld/ELF/MarkLive.cpp | |
| parent | b4a59cbaf1fb74e2ed605aa7f7243ff72612c64d (diff) | |
[ELF] - Do not crash when proccessing absolute symbols during GC.
This is PR33239, previously we segfault on given testcase.
Differential revision: https://reviews.llvm.org/D33713
Diffstat (limited to 'lld/ELF/MarkLive.cpp')
| -rw-r--r-- | lld/ELF/MarkLive.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lld/ELF/MarkLive.cpp b/lld/ELF/MarkLive.cpp index ee499265886..b77c84ff75a 100644 --- a/lld/ELF/MarkLive.cpp +++ b/lld/ELF/MarkLive.cpp @@ -220,7 +220,8 @@ template <class ELFT> void elf::markLive() { auto MarkSymbol = [&](const SymbolBody *Sym) { if (auto *D = dyn_cast_or_null<DefinedRegular>(Sym)) - Enqueue({cast<InputSectionBase>(D->Section), D->Value}); + if (auto *IS = cast_or_null<InputSectionBase>(D->Section)) + Enqueue({IS, D->Value}); }; // Add GC root symbols. |