diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/include/llvm/Object/ELFTypes.h | 103 |
1 files changed, 30 insertions, 73 deletions
diff --git a/llvm/include/llvm/Object/ELFTypes.h b/llvm/include/llvm/Object/ELFTypes.h index 8a648e50988..3dcd46ef305 100644 --- a/llvm/include/llvm/Object/ELFTypes.h +++ b/llvm/include/llvm/Object/ELFTypes.h @@ -305,10 +305,10 @@ struct Elf_Dyn_Impl : Elf_Dyn_Base<ELFT> { }; // Elf_Rel: Elf Relocation -template <class ELFT, bool isRela> struct Elf_Rel_Base; +template <class ELFT, bool isRela> struct Elf_Rel_Impl; template <endianness TargetEndianness> -struct Elf_Rel_Base<ELFType<TargetEndianness, false>, false> { +struct Elf_Rel_Impl<ELFType<TargetEndianness, false>, false> { LLVM_ELF_IMPORT_TYPES(TargetEndianness, false) Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) Elf_Word r_info; // Symbol table index and type of relocation to apply @@ -321,64 +321,46 @@ struct Elf_Rel_Base<ELFType<TargetEndianness, false>, false> { assert(!IsMips64EL); r_info = R; } -}; -template <endianness TargetEndianness> -struct Elf_Rel_Base<ELFType<TargetEndianness, true>, false> { - LLVM_ELF_IMPORT_TYPES(TargetEndianness, true) - Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) - Elf_Xword r_info; // Symbol table index and type of relocation to apply - - uint64_t getRInfo(bool isMips64EL) const { - uint64_t t = r_info; - if (!isMips64EL) - return t; - // Mips64 little endian has a "special" encoding of r_info. Instead of one - // 64 bit little endian number, it is a little endian 32 bit number followed - // by a 32 bit big endian number. - return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) | - ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff); + // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE, + // and ELF32_R_INFO macros defined in the ELF specification: + uint32_t getSymbol(bool isMips64EL) const { + return this->getRInfo(isMips64EL) >> 8; } - void setRInfo(uint64_t R, bool IsMips64EL) { - if (IsMips64EL) - r_info = (R >> 32) | ((R & 0xff000000) << 8) | ((R & 0x00ff0000) << 24) | - ((R & 0x0000ff00) << 40) | ((R & 0x000000ff) << 56); - else - r_info = R; + unsigned char getType(bool isMips64EL) const { + return (unsigned char)(this->getRInfo(isMips64EL) & 0x0ff); + } + void setSymbol(uint32_t s, bool IsMips64EL) { + setSymbolAndType(s, getType(), IsMips64EL); + } + void setType(unsigned char t, bool IsMips64EL) { + setSymbolAndType(getSymbol(), t, IsMips64EL); + } + void setSymbolAndType(uint32_t s, unsigned char t, bool IsMips64EL) { + this->setRInfo((s << 8) + t, IsMips64EL); } }; template <endianness TargetEndianness> -struct Elf_Rel_Base<ELFType<TargetEndianness, false>, true> { +struct Elf_Rel_Impl<ELFType<TargetEndianness, false>, true> + : public Elf_Rel_Impl<ELFType<TargetEndianness, false>, false> { LLVM_ELF_IMPORT_TYPES(TargetEndianness, false) - Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) - Elf_Word r_info; // Symbol table index and type of relocation to apply Elf_Sword r_addend; // Compute value for relocatable field by adding this - - uint32_t getRInfo(bool isMips64EL) const { - assert(!isMips64EL); - return r_info; - } - void setRInfo(uint32_t R, bool IsMips64EL) { - assert(!IsMips64EL); - r_info = R; - } }; template <endianness TargetEndianness> -struct Elf_Rel_Base<ELFType<TargetEndianness, true>, true> { +struct Elf_Rel_Impl<ELFType<TargetEndianness, true>, false> { LLVM_ELF_IMPORT_TYPES(TargetEndianness, true) - Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) - Elf_Xword r_info; // Symbol table index and type of relocation to apply - Elf_Sxword r_addend; // Compute value for relocatable field by adding this. + Elf_Addr r_offset; // Location (file byte offset, or program virtual addr) + Elf_Xword r_info; // Symbol table index and type of relocation to apply uint64_t getRInfo(bool isMips64EL) const { - // Mips64 little endian has a "special" encoding of r_info. Instead of one - // 64 bit little endian number, it is a little endian 32 bit number followed - // by a 32 bit big endian number. uint64_t t = r_info; if (!isMips64EL) return t; + // Mips64 little endian has a "special" encoding of r_info. Instead of one + // 64 bit little endian number, it is a little endian 32 bit number followed + // by a 32 bit big endian number. return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) | ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff); } @@ -389,14 +371,6 @@ struct Elf_Rel_Base<ELFType<TargetEndianness, true>, true> { else r_info = R; } -}; - -template <class ELFT, bool isRela> struct Elf_Rel_Impl; - -template <endianness TargetEndianness, bool isRela> -struct Elf_Rel_Impl<ELFType<TargetEndianness, true>, isRela> - : Elf_Rel_Base<ELFType<TargetEndianness, true>, isRela> { - LLVM_ELF_IMPORT_TYPES(TargetEndianness, true) // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE, // and ELF64_R_INFO macros defined in the ELF specification: @@ -417,28 +391,11 @@ struct Elf_Rel_Impl<ELFType<TargetEndianness, true>, isRela> } }; -template <endianness TargetEndianness, bool isRela> -struct Elf_Rel_Impl<ELFType<TargetEndianness, false>, isRela> - : Elf_Rel_Base<ELFType<TargetEndianness, false>, isRela> { - LLVM_ELF_IMPORT_TYPES(TargetEndianness, false) - - // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE, - // and ELF32_R_INFO macros defined in the ELF specification: - uint32_t getSymbol(bool isMips64EL) const { - return this->getRInfo(isMips64EL) >> 8; - } - unsigned char getType(bool isMips64EL) const { - return (unsigned char)(this->getRInfo(isMips64EL) & 0x0ff); - } - void setSymbol(uint32_t s, bool IsMips64EL) { - setSymbolAndType(s, getType(), IsMips64EL); - } - void setType(unsigned char t, bool IsMips64EL) { - setSymbolAndType(getSymbol(), t, IsMips64EL); - } - void setSymbolAndType(uint32_t s, unsigned char t, bool IsMips64EL) { - this->setRInfo((s << 8) + t, IsMips64EL); - } +template <endianness TargetEndianness> +struct Elf_Rel_Impl<ELFType<TargetEndianness, true>, true> + : public Elf_Rel_Impl<ELFType<TargetEndianness, true>, false> { + LLVM_ELF_IMPORT_TYPES(TargetEndianness, true) + Elf_Sxword r_addend; // Compute value for relocatable field by adding this. }; template <class ELFT> |
