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| author | Joerg Sonnenberger <joerg@bec.de> | 2014-11-25 13:37:55 +0000 |
|---|---|---|
| committer | Joerg Sonnenberger <joerg@bec.de> | 2014-11-25 13:37:55 +0000 |
| commit | cf0ea262b1aa1b01088f1f1cbb85b74d61322ff0 (patch) | |
| tree | a9909eb50c7f2699408b56e17e968c5483bb3daa /llvm/lib/MC/MCObjectFileInfo.cpp | |
| parent | b6e36e14212a50c03c0af11f9596031ced48308e (diff) | |
| download | llvm-cf0ea262b1aa1b01088f1f1cbb85b74d61322ff0.zip llvm-cf0ea262b1aa1b01088f1f1cbb85b74d61322ff0.tar.gz llvm-cf0ea262b1aa1b01088f1f1cbb85b74d61322ff0.tar.bz2 | |
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
Diffstat (limited to 'llvm/lib/MC/MCObjectFileInfo.cpp')
| -rw-r--r-- | llvm/lib/MC/MCObjectFileInfo.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
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; |