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authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff)
Notes
Diffstat (limited to 'contrib/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp')
-rw-r--r--contrib/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp58
1 files changed, 0 insertions, 58 deletions
diff --git a/contrib/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp b/contrib/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp
deleted file mode 100644
index e237fab1b267..000000000000
--- a/contrib/llvm/lib/Target/PowerPC/PPCTargetObjectFile.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//===-- PPCTargetObjectFile.cpp - PPC Object Info -------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "PPCTargetObjectFile.h"
-#include "llvm/IR/Mangler.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCSectionELF.h"
-
-using namespace llvm;
-
-void
-PPC64LinuxTargetObjectFile::
-Initialize(MCContext &Ctx, const TargetMachine &TM) {
- TargetLoweringObjectFileELF::Initialize(Ctx, TM);
- InitializeELF(TM.Options.UseInitArray);
-}
-
-MCSection *PPC64LinuxTargetObjectFile::SelectSectionForGlobal(
- const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const {
- // Here override ReadOnlySection to DataRelROSection for PPC64 SVR4 ABI
- // when we have a constant that contains global relocations. This is
- // necessary because of this ABI's handling of pointers to functions in
- // a shared library. The address of a function is actually the address
- // of a function descriptor, which resides in the .opd section. Generated
- // code uses the descriptor directly rather than going via the GOT as some
- // other ABIs do, which means that initialized function pointers must
- // reference the descriptor. The linker must convert copy relocs of
- // pointers to functions in shared libraries into dynamic relocations,
- // because of an ordering problem with initialization of copy relocs and
- // PLT entries. The dynamic relocation will be initialized by the dynamic
- // linker, so we must use DataRelROSection instead of ReadOnlySection.
- // For more information, see the description of ELIMINATE_COPY_RELOCS in
- // GNU ld.
- if (Kind.isReadOnly()) {
- const auto *GVar = dyn_cast<GlobalVariable>(GO);
-
- if (GVar && GVar->isConstant() && GVar->getInitializer()->needsRelocation())
- Kind = SectionKind::getReadOnlyWithRel();
- }
-
- return TargetLoweringObjectFileELF::SelectSectionForGlobal(GO, Kind, TM);
-}
-
-const MCExpr *PPC64LinuxTargetObjectFile::
-getDebugThreadLocalSymbol(const MCSymbol *Sym) const {
- const MCExpr *Expr =
- MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_DTPREL, getContext());
- return MCBinaryExpr::createAdd(Expr,
- MCConstantExpr::create(0x8000, getContext()),
- getContext());
-}
-