diff options
Diffstat (limited to 'include/llvm/Support/ELF.h')
| -rw-r--r-- | include/llvm/Support/ELF.h | 83 |
1 files changed, 63 insertions, 20 deletions
diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h index 6f939e7..83478b7 100644 --- a/include/llvm/Support/ELF.h +++ b/include/llvm/Support/ELF.h @@ -216,6 +216,27 @@ enum { R_X86_64_TLSDESC = 36 }; +// i386 relocations. +// TODO: this is just a subset +enum { + R_386_NONE = 0, + R_386_32 = 1, + R_386_PC32 = 2, + R_386_GOT32 = 3, + R_386_PLT32 = 4, + R_386_COPY = 5, + R_386_GLOB_DAT = 6, + R_386_JUMP_SLOT = 7, + R_386_RELATIVE = 8, + R_386_GOTOFF = 9, + R_386_GOTPC = 10, + R_386_32PLT = 11, + R_386_16 = 20, + R_386_PC16 = 21, + R_386_8 = 22, + R_386_PC8 = 23 +}; + // Section header. struct Elf32_Shdr { Elf32_Word sh_name; // Section name (index into string table) @@ -257,22 +278,29 @@ enum { // Section types. enum { - SHT_NULL = 0, // No associated section (inactive entry). - SHT_PROGBITS = 1, // Program-defined contents. - SHT_SYMTAB = 2, // Symbol table. - SHT_STRTAB = 3, // String table. - SHT_RELA = 4, // Relocation entries; explicit addends. - SHT_HASH = 5, // Symbol hash table. - SHT_DYNAMIC = 6, // Information for dynamic linking. - SHT_NOTE = 7, // Information about the file. - SHT_NOBITS = 8, // Data occupies no space in the file. - SHT_REL = 9, // Relocation entries; no explicit addends. - SHT_SHLIB = 10, // Reserved. - SHT_DYNSYM = 11, // Symbol table. - SHT_LOPROC = 0x70000000, // Lowest processor architecture-specific type. - SHT_HIPROC = 0x7fffffff, // Highest processor architecture-specific type. - SHT_LOUSER = 0x80000000, // Lowest type reserved for applications. - SHT_HIUSER = 0xffffffff // Highest type reserved for applications. + SHT_NULL = 0, // No associated section (inactive entry). + SHT_PROGBITS = 1, // Program-defined contents. + SHT_SYMTAB = 2, // Symbol table. + SHT_STRTAB = 3, // String table. + SHT_RELA = 4, // Relocation entries; explicit addends. + SHT_HASH = 5, // Symbol hash table. + SHT_DYNAMIC = 6, // Information for dynamic linking. + SHT_NOTE = 7, // Information about the file. + SHT_NOBITS = 8, // Data occupies no space in the file. + SHT_REL = 9, // Relocation entries; no explicit addends. + SHT_SHLIB = 10, // Reserved. + SHT_DYNSYM = 11, // Symbol table. + SHT_INIT_ARRAY = 14, // Pointers to initialisation functions. + SHT_FINI_ARRAY = 15, // Pointers to termination functions. + SHT_PREINIT_ARRAY = 16, // Pointers to pre-init functions. + SHT_GROUP = 17, // Section group. + SHT_SYMTAB_SHNDX = 18, // Indicies for SHN_XINDEX entries. + SHT_LOOS = 0x60000000, // Lowest operating system-specific type. + SHT_HIOS = 0x6fffffff, // Highest operating system-specific type. + SHT_LOPROC = 0x70000000, // Lowest processor architecture-specific type. + SHT_HIPROC = 0x7fffffff, // Highest processor architecture-specific type. + SHT_LOUSER = 0x80000000, // Lowest type reserved for applications. + SHT_HIUSER = 0xffffffff // Highest type reserved for applications. }; // Section flags. @@ -323,6 +351,12 @@ struct Elf64_Sym { } }; +// The size (in bytes) of symbol table entries. +enum { + SYMENTRY_SIZE32 = 16, // 32-bit symbol entry size + SYMENTRY_SIZE64 = 24 // 64-bit symbol entry size. +}; + // Symbol bindings. enum { STB_LOCAL = 0, // Local symbol, not visible outside obj file containing def @@ -339,10 +373,19 @@ enum { STT_FUNC = 2, // Symbol is executable code (function, etc.) STT_SECTION = 3, // Symbol refers to a section STT_FILE = 4, // Local, absolute symbol that refers to a file + STT_COMMON = 5, // An uninitialised common block + STT_TLS = 6, // Thread local data object STT_LOPROC = 13, // Lowest processor-specific symbol type STT_HIPROC = 15 // Highest processor-specific symbol type }; +enum { + STV_DEFAULT = 0, // Visibility is specified by binding type + STV_INTERNAL = 1, // Defined by processor supplements + STV_HIDDEN = 2, // Not visible to other components + STV_PROTECTED = 3 // Visible in other components but not preemptable +}; + // Relocation entry, without explicit addend. struct Elf32_Rel { Elf32_Addr r_offset; // Location (file byte offset, or program virtual addr) @@ -356,7 +399,7 @@ struct Elf32_Rel { void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf32_Word s, unsigned char t) { r_info = (s << 8) + t; - }; + } }; // Relocation entry with explicit addend. @@ -373,7 +416,7 @@ struct Elf32_Rela { void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf32_Word s, unsigned char t) { r_info = (s << 8) + t; - }; + } }; // Relocation entry, without explicit addend. @@ -391,7 +434,7 @@ struct Elf64_Rel { 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. @@ -410,7 +453,7 @@ struct Elf64_Rela { void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); } void setSymbolAndType(Elf64_Xword s, unsigned char t) { r_info = (s << 32) + (t&0xffffffffL); - }; + } }; // Program header for ELF32. |
