From aa71428378c1cb491ca60041d8ba7aa110bc963d Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Thu, 25 Oct 2012 12:27:42 +0000 Subject: Initial TOC support for PowerPC64 object creation This patch adds initial PPC64 TOC MC object creation using the small mcmodel (a single 64K TOC) adding the some TOC relocations (R_PPC64_TOC, R_PPC64_TOC16, and R_PPC64_TOC16DS). The addition of 'undefinedExplicitRelSym' hook on 'MCELFObjectTargetWriter' is meant to avoid the creation of an unreferenced ".TOC." symbol (used in the .odp creation) as well to set the R_PPC64_TOC relocation target as the temporary ".TOC." symbol. On PPC64 ABI, the R_PPC64_TOC relocation should not point to any symbol. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166677 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/MC/MCELFObjectTargetWriter.cpp | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'lib/MC/MCELFObjectTargetWriter.cpp') diff --git a/lib/MC/MCELFObjectTargetWriter.cpp b/lib/MC/MCELFObjectTargetWriter.cpp index 6eb6914f4b..74cd042a0f 100644 --- a/lib/MC/MCELFObjectTargetWriter.cpp +++ b/lib/MC/MCELFObjectTargetWriter.cpp @@ -9,6 +9,8 @@ #include "llvm/ADT/STLExtras.h" #include "llvm/MC/MCELFObjectWriter.h" +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCValue.h" using namespace llvm; @@ -35,6 +37,12 @@ const MCSymbol *MCELFObjectTargetWriter::ExplicitRelSym(const MCAssembler &Asm, return NULL; } +const MCSymbol *MCELFObjectTargetWriter::undefinedExplicitRelSym(const MCValue &Target, + const MCFixup &Fixup, + bool IsPCRel) const { + const MCSymbol &Symbol = Target.getSymA()->getSymbol(); + return &Symbol.AliasedSymbol(); +} void MCELFObjectTargetWriter::adjustFixupOffset(const MCFixup &Fixup, uint64_t &RelocOffset) { -- cgit v1.2.3