vendor/lld/lld-trunk-r233088

1 files changed, 42 insertions, 0 deletions

diff --git a/lib/ReaderWriter/ELF/X86/X86LinkingContext.h b/lib/ReaderWriter/ELF/X86/X86LinkingContext.h
new file mode 100644
index 000000000000..ff424f411aae
--- /dev/null
+++ b/lib/ReaderWriter/ELF/X86/X86LinkingContext.h
@@ -0,0 +1,42 @@
+//===- lib/ReaderWriter/ELF/X86/X86LinkingContext.h -----------------------===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_READER_WRITER_ELF_X86_TARGETINFO_H
+#define LLD_READER_WRITER_ELF_X86_TARGETINFO_H
+
+#include "lld/ReaderWriter/ELFLinkingContext.h"
+#include "llvm/Object/ELF.h"
+#include "llvm/Support/ELF.h"
+
+namespace lld {
+namespace elf {
+class X86LinkingContext final : public ELFLinkingContext {
+public:
+  static std::unique_ptr<ELFLinkingContext> create(llvm::Triple);
+  X86LinkingContext(llvm::Triple);
+
+  /// \brief X86 has only two relative relocation
+  /// a) for supporting IFUNC relocs - R_386_IRELATIVE
+  /// b) for supporting relative relocs - R_386_RELATIVE
+  bool isRelativeReloc(const Reference &r) const override {
+    if (r.kindNamespace() != Reference::KindNamespace::ELF)
+      return false;
+    assert(r.kindArch() == Reference::KindArch::x86);
+    switch (r.kindValue()) {
+    case llvm::ELF::R_386_IRELATIVE:
+    case llvm::ELF::R_386_RELATIVE:
+      return true;
+    default:
+      return false;
+    }
+  }
+};
+} // end namespace elf
+} // end namespace lld
+#endif