Merge MCELF.h into MCSymbolELF.h.

Now that we have a dedicated type for ELF symbol, these helper functions can
become member function of MCSymbolELF.

llvm-svn: 238864

1 files changed, 79 insertions, 0 deletions

diff --git a/llvm/lib/MC/MCSymbolELF.cpp b/llvm/lib/MC/MCSymbolELF.cpp
new file mode 100644
index 00000000000..1893bb0f8dc
--- /dev/null
+++ b/llvm/lib/MC/MCSymbolELF.cpp
@@ -0,0 +1,79 @@
+//===- lib/MC/MCSymbolELF.cpp ---------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCAssembler.h"
+#include "llvm/MC/MCSymbolELF.h"
+#include "llvm/MC/MCELFSymbolFlags.h"
+#include "llvm/MC/MCFixupKindInfo.h"
+#include "llvm/Support/ELF.h"
+
+namespace llvm {
+
+void MCSymbolELF::setBinding(unsigned Binding) const {
+  assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL ||
+         Binding == ELF::STB_WEAK || Binding == ELF::STB_GNU_UNIQUE);
+  uint32_t OtherFlags = getFlags() & ~(0xf << ELF_STB_Shift);
+  setFlags(OtherFlags | (Binding << ELF_STB_Shift));
+}
+
+unsigned MCSymbolELF::getBinding() const {
+  uint32_t Binding = (getFlags() & (0xf << ELF_STB_Shift)) >> ELF_STB_Shift;
+  assert(Binding == ELF::STB_LOCAL || Binding == ELF::STB_GLOBAL ||
+         Binding == ELF::STB_WEAK || Binding == ELF::STB_GNU_UNIQUE);
+  return Binding;
+}
+
+void MCSymbolELF::setType(unsigned Type) const {
+  assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
+         Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
+         Type == ELF::STT_COMMON || Type == ELF::STT_TLS ||
+         Type == ELF::STT_GNU_IFUNC);
+
+  uint32_t OtherFlags = getFlags() & ~(0xf << ELF_STT_Shift);
+  setFlags(OtherFlags | (Type << ELF_STT_Shift));
+}
+
+unsigned MCSymbolELF::getType() const {
+  uint32_t Type = (getFlags() & (0xf << ELF_STT_Shift)) >> ELF_STT_Shift;
+  assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
+         Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
+         Type == ELF::STT_COMMON || Type == ELF::STT_TLS ||
+         Type == ELF::STT_GNU_IFUNC);
+  return Type;
+}
+
+// Visibility is stored in the first two bits of st_other
+// st_other values are stored in the second byte of get/setFlags
+void MCSymbolELF::setVisibility(unsigned Visibility) {
+  assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL ||
+         Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED);
+
+  uint32_t OtherFlags = getFlags() & ~(0x3 << ELF_STV_Shift);
+  setFlags(OtherFlags | (Visibility << ELF_STV_Shift));
+}
+
+unsigned MCSymbolELF::getVisibility() const {
+  unsigned Visibility = (getFlags() & (0x3 << ELF_STV_Shift)) >> ELF_STV_Shift;
+  assert(Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_INTERNAL ||
+         Visibility == ELF::STV_HIDDEN || Visibility == ELF::STV_PROTECTED);
+  return Visibility;
+}
+
+// Other is stored in the last six bits of st_other
+// st_other values are stored in the second byte of get/setFlags
+void MCSymbolELF::setOther(unsigned Other) {
+  uint32_t OtherFlags = getFlags() & ~(0x3f << ELF_STO_Shift);
+  setFlags(OtherFlags | (Other << ELF_STO_Shift));
+}
+
+unsigned MCSymbolELF::getOther() const {
+  unsigned Other = (getFlags() & (0x3f << ELF_STO_Shift)) >> ELF_STO_Shift;
+  return Other;
+}
+}