From a0554d90e87f339b6c0d7482a3e47f4a85c588be Mon Sep 17 00:00:00 2001 From: Anton Korobeynikov Date: Fri, 12 Jan 2007 19:20:47 +0000 Subject: * PIC codegen for X86/Linux has been implemented * PIC-aware internal structures in X86 Codegen have been refactored * Visibility (default/weak) has been added * Docs fixes (external weak linkage, visibility, formatting) llvm-svn: 33136 --- llvm/lib/Target/X86/X86TargetMachine.cpp | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'llvm/lib/Target/X86/X86TargetMachine.cpp') diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp index d92ae498cf0..8bcda9a290b 100644 --- a/llvm/lib/Target/X86/X86TargetMachine.cpp +++ b/llvm/lib/Target/X86/X86TargetMachine.cpp @@ -127,6 +127,25 @@ X86TargetMachine::X86TargetMachine(const Module &M, const std::string &FS, bool if (getCodeModel() == CodeModel::Default) setCodeModel(CodeModel::Small); } + + if (getRelocationModel() == Reloc::PIC_) { + if (Subtarget.isTargetDarwin()) { + if (Subtarget.is64Bit()) + Subtarget.setPICStyle(PICStyle::RIPRel); + else + Subtarget.setPICStyle(PICStyle::Stub); + } else if (Subtarget.isTargetELF()) + Subtarget.setPICStyle(PICStyle::GOT); + else + assert(0 && "Don't know how to generate PIC code for this target!"); + } else if (getRelocationModel() == Reloc::DynamicNoPIC) { + if (Subtarget.isTargetDarwin()) + Subtarget.setPICStyle(PICStyle::Stub); + else if (Subtarget.isTargetCygMing()) + Subtarget.setPICStyle(PICStyle::WinPIC); + else + assert(0 && "Don't know how to generate PIC code for this target!"); + } } //===----------------------------------------------------------------------===// @@ -163,6 +182,8 @@ bool X86TargetMachine::addCodeEmitter(FunctionPassManager &PM, bool Fast, MachineCodeEmitter &MCE) { // FIXME: Move this to TargetJITInfo! setRelocationModel(Reloc::Static); + Subtarget.setPICStyle(PICStyle::None); + // JIT cannot ensure globals are placed in the lower 4G of address. if (Subtarget.is64Bit()) setCodeModel(CodeModel::Large); -- cgit v1.2.3