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-rw-r--r--lib/Target/X86/MCTargetDesc/X86ELFRelocationInfo.cpp141
1 files changed, 0 insertions, 141 deletions
diff --git a/lib/Target/X86/MCTargetDesc/X86ELFRelocationInfo.cpp b/lib/Target/X86/MCTargetDesc/X86ELFRelocationInfo.cpp
deleted file mode 100644
index ddb764facdbfa..0000000000000
--- a/lib/Target/X86/MCTargetDesc/X86ELFRelocationInfo.cpp
+++ /dev/null
@@ -1,141 +0,0 @@
-//===-- X86ELFRelocationInfo.cpp ----------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MCTargetDesc/X86MCTargetDesc.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCRelocationInfo.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Object/ELFObjectFile.h"
-#include "llvm/Support/ELF.h"
-
-using namespace llvm;
-using namespace object;
-using namespace ELF;
-
-namespace {
-class X86_64ELFRelocationInfo : public MCRelocationInfo {
-public:
- X86_64ELFRelocationInfo(MCContext &Ctx) : MCRelocationInfo(Ctx) {}
-
- const MCExpr *createExprForRelocation(RelocationRef Rel) override {
- uint64_t RelType = Rel.getType();
- elf_symbol_iterator SymI = Rel.getSymbol();
-
- ErrorOr<StringRef> SymNameOrErr = SymI->getName();
- if (std::error_code EC = SymNameOrErr.getError())
- report_fatal_error(EC.message());
- StringRef SymName = *SymNameOrErr;
-
- ErrorOr<uint64_t> SymAddr = SymI->getAddress();
- if (std::error_code EC = SymAddr.getError())
- report_fatal_error(EC.message());
- uint64_t SymSize = SymI->getSize();
- int64_t Addend = *ELFRelocationRef(Rel).getAddend();
-
- MCSymbol *Sym = Ctx.getOrCreateSymbol(SymName);
- // FIXME: check that the value is actually the same.
- if (!Sym->isVariable())
- Sym->setVariableValue(MCConstantExpr::create(*SymAddr, Ctx));
-
- const MCExpr *Expr = nullptr;
- // If hasAddend is true, then we need to add Addend (r_addend) to Expr.
- bool hasAddend = false;
-
- // The AMD64 SysV ABI says:
- // A: the addend used to compute the value of the relocatable field.
- // B: the base address at which a shared object has been loaded into memory
- // during execution. Generally, a shared object is built with a 0 base
- // virtual address, but the execution address will be different.
- // G: the offset into the global offset table at which the relocation
- // entry's symbol will reside during execution.
- // GOT: the address of the global offset table.
- // L: the place (section offset or address) of the Procedure Linkage Table
- // entry for a symbol.
- // P: the place (section offset or address) of the storage unit being
- // relocated (computed using r_offset).
- // S: the value of the symbol whose index resides in the relocation entry.
- // Z: the size of the symbol whose index resides in the relocation entry.
-
- switch(RelType) {
- case R_X86_64_NONE:
- case R_X86_64_COPY:
- // none
- break;
- case R_X86_64_64:
- case R_X86_64_16:
- case R_X86_64_8:
- // S + A
- case R_X86_64_32:
- case R_X86_64_32S:
- // S + A (We don't care about the result not fitting in 32 bits.)
- case R_X86_64_PC32:
- case R_X86_64_PC16:
- case R_X86_64_PC8:
- case R_X86_64_PC64:
- // S + A - P (P/pcrel is implicit)
- hasAddend = true;
- Expr = MCSymbolRefExpr::create(Sym, Ctx);
- break;
- case R_X86_64_GOT32:
- case R_X86_64_GOT64:
- case R_X86_64_GOTPC32:
- case R_X86_64_GOTPC64:
- case R_X86_64_GOTPLT64:
- // G + A
- hasAddend = true;
- Expr = MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_GOT, Ctx);
- break;
- case R_X86_64_PLT32:
- // L + A - P -> S@PLT + A
- hasAddend = true;
- Expr = MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_PLT, Ctx);
- break;
- case R_X86_64_GLOB_DAT:
- case R_X86_64_JUMP_SLOT:
- // S
- Expr = MCSymbolRefExpr::create(Sym, Ctx);
- break;
- case R_X86_64_GOTPCREL:
- case R_X86_64_GOTPCREL64:
- // G + GOT + A - P -> S@GOTPCREL + A
- hasAddend = true;
- Expr = MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_GOTPCREL, Ctx);
- break;
- case R_X86_64_GOTOFF64:
- // S + A - GOT
- Expr = MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_GOTOFF, Ctx);
- break;
- case R_X86_64_PLTOFF64:
- // L + A - GOT
- break;
- case R_X86_64_SIZE32:
- case R_X86_64_SIZE64:
- // Z + A
- Expr = MCConstantExpr::create(SymSize, Ctx);
- break;
- default:
- Expr = MCSymbolRefExpr::create(Sym, Ctx);
- break;
- }
- if (Expr && hasAddend && Addend != 0)
- Expr = MCBinaryExpr::createAdd(Expr,
- MCConstantExpr::create(Addend, Ctx),
- Ctx);
- return Expr;
- }
-};
-} // End unnamed namespace
-
-/// createX86ELFRelocationInfo - Construct an X86 Mach-O RelocationInfo.
-MCRelocationInfo *llvm::createX86_64ELFRelocationInfo(MCContext &Ctx) {
- // We only handle x86-64 for now.
- return new X86_64ELFRelocationInfo(Ctx);
-}