From b843060ecfa29efb5f896350f6530fa81184e420 Mon Sep 17 00:00:00 2001 From: Ulrich Weigand Date: Tue, 2 Jul 2013 18:47:35 +0000 Subject: [PowerPC] Support TLS variables in debug info This adds an implementation of getDebugThreadLocalSymbol for (64-bit) PowerPC. This needs to return a generic MCExpr since on ppc64, we need to add a bias of 0x8000 to the value returned by the R_PPC64_DTPREL64 relocation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185461 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCTargetObjectFile.cpp | 10 ++++++++++ lib/Target/PowerPC/PPCTargetObjectFile.h | 3 +++ 2 files changed, 13 insertions(+) (limited to 'lib/Target/PowerPC') diff --git a/lib/Target/PowerPC/PPCTargetObjectFile.cpp b/lib/Target/PowerPC/PPCTargetObjectFile.cpp index 90e4f15..ec1e606 100644 --- a/lib/Target/PowerPC/PPCTargetObjectFile.cpp +++ b/lib/Target/PowerPC/PPCTargetObjectFile.cpp @@ -55,3 +55,13 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, return DefaultSection; } + +const MCExpr *PPC64LinuxTargetObjectFile:: +getDebugThreadLocalSymbol(const MCSymbol *Sym) const { + const MCExpr *Expr = + MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_PPC_DTPREL, getContext()); + return MCBinaryExpr::CreateAdd(Expr, + MCConstantExpr::Create(0x8000, getContext()), + getContext()); +} + diff --git a/lib/Target/PowerPC/PPCTargetObjectFile.h b/lib/Target/PowerPC/PPCTargetObjectFile.h index 9203e23..262c522 100644 --- a/lib/Target/PowerPC/PPCTargetObjectFile.h +++ b/lib/Target/PowerPC/PPCTargetObjectFile.h @@ -25,6 +25,9 @@ namespace llvm { virtual const MCSection * SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, Mangler *Mang, const TargetMachine &TM) const; + + /// \brief Describe a TLS variable address within debug info. + virtual const MCExpr *getDebugThreadLocalSymbol(const MCSymbol *Sym) const; }; } // end namespace llvm -- cgit v1.1