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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2013-03-15 05:51:57 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2013-03-15 05:51:57 +0000 |
| commit | ef9d3494b2e0c9e4bcdc623f4d98670e9874be59 (patch) | |
| tree | db24a29b1fcedead7e4ea28532f081e4fd4214e9 /llvm/lib/MC/MCObjectFileInfo.cpp | |
| parent | bb420f10e98e1ce469d1e767fee797bb9b5ef2c1 (diff) | |
| download | bcm5719-llvm-ef9d3494b2e0c9e4bcdc623f4d98670e9874be59.tar.gz bcm5719-llvm-ef9d3494b2e0c9e4bcdc623f4d98670e9874be59.zip | |
Fix the FDE encoding to be relative on ELF.
This is a very late complement to r130637 which fixed this on x86_64. Fixes
pr15448.
Since it looks like that every elf architecture uses this encoding when using
cfi, make it the default for elf. Just exclude mips64el. It has a lovely
.ll -> .o test (ef_frame.ll) that tests that nothing changes in the binary
content of the .eh_frame produced by llc. Oblige it.
llvm-svn: 177141
Diffstat (limited to 'llvm/lib/MC/MCObjectFileInfo.cpp')
| -rw-r--r-- | llvm/lib/MC/MCObjectFileInfo.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp index 2e1a0455696..bafa002e3d4 100644 --- a/llvm/lib/MC/MCObjectFileInfo.cpp +++ b/llvm/lib/MC/MCObjectFileInfo.cpp @@ -223,6 +223,11 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) { } void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) { + // FIXME: Check this. Mips64el is using the base values, which is most likely + // incorrect. + if (T.getArch() != Triple::mips64el) + FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; + if (T.getArch() == Triple::x86) { PersonalityEncoding = (RelocM == Reloc::PIC_) ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 @@ -230,15 +235,13 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) { LSDAEncoding = (RelocM == Reloc::PIC_) ? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_absptr; - FDEEncoding = FDECFIEncoding = (RelocM == Reloc::PIC_) + FDEEncoding = (RelocM == Reloc::PIC_) ? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_absptr; TTypeEncoding = (RelocM == Reloc::PIC_) ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_absptr; } else if (T.getArch() == Triple::x86_64) { - FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; - if (RelocM == Reloc::PIC_) { PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium) @@ -261,8 +264,6 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) { ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; } } else if (T.getArch() == Triple::aarch64) { - FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; - // The small model guarantees static code/data size < 4GB, but not where it // will be in memory. Most of these could end up >2GB away so even a signed // pc-relative 32-bit address is insufficient, theoretically. @@ -282,7 +283,6 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) { } else if (T.getArch() == Triple::ppc64) { PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8; - FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8; FDEEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8; TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
