[ELF][PPC64] Rename some PPC64 ELFv2 specific RelExpr from R_PPC_* to R_PPC64_*

The following abstract relocation types (RelExpr) are PPC64 ELFv2 ABI specific,
not used by PPC32. So rename them to prevent confusion when the PPC32 port is improved.

* R_PPC_CALL R_PPC_CALL_PLT:
  R_PPC_CALL_PLT represents R_PPC64_REL14 and R_PPC64_REL24.
  If the function is not preemptable, R_PPC_CALL_PLT can be optimized to R_PPC_CALL:
  the formula adjusts the symbol VA from the global entry point to the local entry point.
* R_PPC_TOC: represents R_PPC64_TOC.  We don't have a test. Add one to ppc64-relocs.s
  Rename it to R_PPC64_TOCBASE because `@tocbase` is the assembly form.

Reviewed By: ruiu

Differential Revision: https://reviews.llvm.org/D62800

llvm-svn: 362359

1 files changed, 4 insertions, 4 deletions

diff --git a/lld/ELF/InputSection.cpp b/lld/ELF/InputSection.cpp
index 45bafd321de..74a8028e229 100644
--- a/lld/ELF/InputSection.cpp
+++ b/lld/ELF/InputSection.cpp
@@ -717,9 +717,9 @@ static uint64_t getRelocTargetVA(const InputFile *File, RelType Type, int64_t A,
   case R_PLT:
     return Sym.getPltVA() + A;
   case R_PLT_PC:
-  case R_PPC_CALL_PLT:
+  case R_PPC64_CALL_PLT:
     return Sym.getPltVA() + A - P;
-  case R_PPC_CALL: {
+  case R_PPC64_CALL: {
     uint64_t SymVA = Sym.getVA(A);
     // If we have an undefined weak symbol, we might get here with a symbol
     // address of zero. That could overflow, but the code must be unreachable,
@@ -735,7 +735,7 @@ static uint64_t getRelocTargetVA(const InputFile *File, RelType Type, int64_t A,
     // branching to the local entry point.
     return SymVA - P + getPPC64GlobalEntryToLocalEntryOffset(Sym.StOther);
   }
-  case R_PPC_TOC:
+  case R_PPC64_TOCBASE:
     return getPPC64TocBase() + A;
   case R_RELAX_GOT_PC:
     return Sym.getVA(A) - P;
@@ -922,7 +922,7 @@ void InputSectionBase::relocateAlloc(uint8_t *Buf, uint8_t *BufEnd) {
     case R_RELAX_TLS_GD_TO_IE_GOTPLT:
       Target->relaxTlsGdToIe(BufLoc, Type, TargetVA);
       break;
-    case R_PPC_CALL:
+    case R_PPC64_CALL:
       // If this is a call to __tls_get_addr, it may be part of a TLS
       // sequence that has been relaxed and turned into a nop. In this
       // case, we don't want to handle it as a call.