From cf0ea262b1aa1b01088f1f1cbb85b74d61322ff0 Mon Sep 17 00:00:00 2001 From: Joerg Sonnenberger Date: Tue, 25 Nov 2014 13:37:55 +0000 Subject: Reapply 222538 and update tests to explicitly request small code model and PIC: Allow FDE references outside the +/-2GB range supported by PC relative offsets for code models other than small/medium. For JIT application, memory layout is less controlled and can result in truncations otherwise. Patch from Akos Kiss. Differential Revision: http://reviews.llvm.org/D6079 llvm-svn: 222760 --- llvm/lib/MC/MCObjectFileInfo.cpp | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'llvm/lib/MC/MCObjectFileInfo.cpp') diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp index 7886ab6..96929e5 100644 --- a/llvm/lib/MC/MCObjectFileInfo.cpp +++ b/llvm/lib/MC/MCObjectFileInfo.cpp @@ -273,6 +273,17 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) { case Triple::mips64el: FDECFIEncoding = dwarf::DW_EH_PE_sdata8; break; + case Triple::x86_64: + if (RelocM == Reloc::PIC_) { + FDECFIEncoding = dwarf::DW_EH_PE_pcrel | + ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium) + ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); + } else { + FDECFIEncoding = + (CMModel == CodeModel::Small || CMModel == CodeModel::Medium) + ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; + } + break; default: FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; break; -- cgit v1.1