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Add X86_64 ELF relocation values and ELF64 relocation classes.

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Patch from Roman Divacky.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107688 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Fleming 2010-07-06 18:44:02 +00:00
parent e07cc5dab1
commit 004c82ad7c
1 changed files with 73 additions and 0 deletions
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73
include/llvm/Support/ELF.h
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@ -159,6 +159,42 @@ enum {
ELFOSABI_STANDALONE = 255 // Standalone (embedded) application
};
// X86_64 relocations.
enum {
R_X86_64_NONE = 0,
R_X86_64_64 = 1,
R_X86_64_PC32 = 2,
R_X86_64_GOT32 = 3,
R_X86_64_PLT32 = 4,
R_X86_64_COPY = 5,
R_X86_64_GLOB_DAT = 6,
R_X86_64_JUMP_SLOT = 7,
R_X86_64_RELATIVE = 8,
R_X86_64_GOTPCREL = 9,
R_X86_64_32 = 10,
R_X86_64_32S = 11,
R_X86_64_16 = 12,
R_X86_64_PC16 = 13,
R_X86_64_8 = 14,
R_X86_64_PC8 = 15,
R_X86_64_DTPMOD64 = 16,
R_X86_64_DTPOFF64 = 17,
R_X86_64_TPOFF64 = 18,
R_X86_64_TLSGD = 19,
R_X86_64_TLSLD = 20,
R_X86_64_DTPOFF32 = 21,
R_X86_64_GOTTPOFF = 22,
R_X86_64_TPOFF32 = 23,
R_X86_64_PC64 = 24,
R_X86_64_GOTOFF64 = 25,
R_X86_64_GOTPC32 = 26,
R_X86_64_SIZE32 = 32,
R_X86_64_SIZE64 = 33,
R_X86_64_GOTPC32_TLSDESC = 34,
R_X86_64_TLSDESC_CALL = 35,
R_X86_64_TLSDESC = 36
};
// Section header.
struct Elf32_Shdr {
Elf32_Word sh_name; // Section name (index into string table)
@ -299,6 +335,43 @@ struct Elf32_Rela {
};
};
// Relocation entry, without explicit addend.
struct Elf64_Rel {
Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
Elf64_Xword r_info; // Symbol table index and type of relocation to apply.
// These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
// and ELF64_R_INFO macros defined in the ELF specification:
Elf64_Xword getSymbol () const { return (r_info >> 32); }
unsigned char getType () const {
return (unsigned char) (r_info & 0xffffffffL);
}
void setSymbol (Elf32_Word s) { setSymbolAndType (s, getType ()); }
void setType (unsigned char t) { setSymbolAndType (getSymbol(), t); }
void setSymbolAndType (Elf64_Xword s, unsigned char t) {
r_info = (s << 32) + (t&0xffffffffL);
};
};
// Relocation entry with explicit addend.
struct Elf64_Rela {
Elf64_Addr r_offset; // Location (file byte offset, or program virtual addr).
Elf64_Xword r_info; // Symbol table index and type of relocation to apply.
Elf64_Sxword r_addend; // Compute value for relocatable field by adding this.
// These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
// and ELF64_R_INFO macros defined in the ELF specification:
Elf64_Xword getSymbol () const { return (r_info >> 32); }
unsigned char getType () const {
return (unsigned char) (r_info & 0xffffffffL);
}
void setSymbol (Elf64_Xword s) { setSymbolAndType (s, getType ()); }
void setType (unsigned char t) { setSymbolAndType (getSymbol(), t); }
void setSymbolAndType (Elf64_Xword s, unsigned char t) {
r_info = (s << 32) + (t&0xffffffffL);
};
};
// Program header.
struct Elf32_Phdr {
Elf32_Word p_type; // Type of segment