diff options
Diffstat (limited to 'lib/Object')
| -rw-r--r-- | lib/Object/MachOObjectFile.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp index 96db34f411..a4d7cb542f 100644 --- a/lib/Object/MachOObjectFile.cpp +++ b/lib/Object/MachOObjectFile.cpp @@ -952,6 +952,38 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel, return object_error::success; } +error_code MachOObjectFile::getRelocationHidden(DataRefImpl Rel, + bool &Result) const { + InMemoryStruct<macho::RelocationEntry> RE; + getRelocation(Rel, RE); + + unsigned Type = (RE->Word1 >> 28) & 0xF; + unsigned Arch = getArch(); + + Result = false; + + // On arches that use the generic relocations, GENERIC_RELOC_PAIR + // is always hidden. + if (Arch == Triple::x86 || Arch == Triple::arm) { + if (Type == 1) Result = true; + } else if (Arch == Triple::x86_64) { + // On x86_64, X86_64_RELOC_UNSIGNED is hidden only when it follows + // an X864_64_RELOC_SUBTRACTOR. + if (Type == 0 && Rel.d.a > 0) { + DataRefImpl RelPrev = Rel; + RelPrev.d.a--; + InMemoryStruct<macho::RelocationEntry> REPrev; + getRelocation(RelPrev, REPrev); + + unsigned PrevType = (REPrev->Word1 >> 28) & 0xF; + + if (PrevType == 5) Result = true; + } + } + + return object_error::success; +} + /*===-- Miscellaneous -----------------------------------------------------===*/ uint8_t MachOObjectFile::getBytesInAddress() const { |