[lld] r248324 - Stub out ARM and PPC targets so that we can use a switch to create them.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Tue Sep 22 16:24:52 2015
New Revision: 248324

URL: http://llvm.org/viewvc/llvm-project?rev=248324&view=rev
Log:
Stub out ARM and PPC targets so that we can use a switch to create them.

Modified:
    lld/trunk/ELF/SymbolTable.cpp
    lld/trunk/ELF/Target.cpp
    lld/trunk/ELF/Target.h

Modified: lld/trunk/ELF/SymbolTable.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/SymbolTable.cpp?rev=248324&r1=248323&r2=248324&view=diff
==============================================================================
--- lld/trunk/ELF/SymbolTable.cpp (original)
+++ lld/trunk/ELF/SymbolTable.cpp Tue Sep 22 16:24:52 2015
@@ -39,13 +39,24 @@ void SymbolTable::addFile(std::unique_pt
   addELFFile(cast<ELFFileBase>(FileP));
 }
 
+static TargetInfo *createTarget(uint16_t EMachine) {
+  switch (EMachine) {
+  case EM_PPC:
+    return new PPCTargetInfo();
+  case EM_ARM:
+    return new ARMTargetInfo();
+  case EM_PPC64:
+    return new PPC64TargetInfo();
+  case EM_X86_64:
+    return new X86_64TargetInfo();
+  case EM_386:
+    return new X86TargetInfo();
+  }
+  error("Unknown target machine");
+}
+
 template <class ELFT> void SymbolTable::init(uint16_t EMachine) {
-  if (EMachine == EM_PPC64)
-    Target.reset(new PPC64TargetInfo());
-  else if (EMachine == EM_X86_64)
-    Target.reset(new X86_64TargetInfo());
-  else
-    Target.reset(new X86TargetInfo());
+  Target.reset(createTarget(EMachine));
   if (Config->Shared)
     return;
   EntrySym = new (Alloc) Undefined<ELFT>("_start", Undefined<ELFT>::Synthetic);

Modified: lld/trunk/ELF/Target.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Target.cpp?rev=248324&r1=248323&r2=248324&view=diff
==============================================================================
--- lld/trunk/ELF/Target.cpp (original)
+++ lld/trunk/ELF/Target.cpp Tue Sep 22 16:24:52 2015
@@ -180,5 +180,25 @@ void PPC64TargetInfo::relocateOne(uint8_
     break;
   }
 }
+
+PPCTargetInfo::PPCTargetInfo() {
+  // PCRelReloc = FIXME
+}
+void PPCTargetInfo::writePltEntry(uint8_t *Buf, uint64_t GotEntryAddr,
+                                  uint64_t PltEntryAddr) const {}
+bool PPCTargetInfo::relocNeedsGot(uint32_t Type) const { return false; }
+bool PPCTargetInfo::relocNeedsPlt(uint32_t Type) const { return false; }
+void PPCTargetInfo::relocateOne(uint8_t *Buf, const void *RelP, uint32_t Type,
+                                uint64_t BaseAddr, uint64_t SymVA) const {}
+
+ARMTargetInfo::ARMTargetInfo() {
+  // PCRelReloc = FIXME
+}
+void ARMTargetInfo::writePltEntry(uint8_t *Buf, uint64_t GotEntryAddr,
+                                  uint64_t PltEntryAddr) const {}
+bool ARMTargetInfo::relocNeedsGot(uint32_t Type) const { return false; }
+bool ARMTargetInfo::relocNeedsPlt(uint32_t Type) const { return false; }
+void ARMTargetInfo::relocateOne(uint8_t *Buf, const void *RelP, uint32_t Type,
+                                uint64_t BaseAddr, uint64_t SymVA) const {}
 }
 }

Modified: lld/trunk/ELF/Target.h
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Target.h?rev=248324&r1=248323&r2=248324&view=diff
==============================================================================
--- lld/trunk/ELF/Target.h (original)
+++ lld/trunk/ELF/Target.h Tue Sep 22 16:24:52 2015
@@ -65,6 +65,28 @@ public:
                    uint64_t BaseAddr, uint64_t SymVA) const override;
 };
 
+class PPCTargetInfo final : public TargetInfo {
+public:
+  PPCTargetInfo();
+  void writePltEntry(uint8_t *Buf, uint64_t GotEntryAddr,
+                     uint64_t PltEntryAddr) const override;
+  bool relocNeedsGot(uint32_t Type) const override;
+  bool relocNeedsPlt(uint32_t Type) const override;
+  void relocateOne(uint8_t *Buf, const void *RelP, uint32_t Type,
+                   uint64_t BaseAddr, uint64_t SymVA) const override;
+};
+
+class ARMTargetInfo final : public TargetInfo {
+public:
+  ARMTargetInfo();
+  void writePltEntry(uint8_t *Buf, uint64_t GotEntryAddr,
+                     uint64_t PltEntryAddr) const override;
+  bool relocNeedsGot(uint32_t Type) const override;
+  bool relocNeedsPlt(uint32_t Type) const override;
+  void relocateOne(uint8_t *Buf, const void *RelP, uint32_t Type,
+                   uint64_t BaseAddr, uint64_t SymVA) const override;
+};
+
 extern std::unique_ptr<TargetInfo> Target;
 }
 }