1 //===-- lib/Archive/ArchiveInternals.h -------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Internal implementation header for LLVM Archive files. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LIB_ARCHIVE_ARCHIVEINTERNALS_H 15 #define LIB_ARCHIVE_ARCHIVEINTERNALS_H 16 17 #include "llvm/ADT/StringExtras.h" 18 #include "llvm/Bitcode/Archive.h" 19 #include "llvm/Support/TimeValue.h" 20 #include <cstring> 21 22 #define ARFILE_MAGIC "!<arch>\n" ///< magic string 23 #define ARFILE_MAGIC_LEN (sizeof(ARFILE_MAGIC)-1) ///< length of magic string 24 #define ARFILE_SVR4_SYMTAB_NAME "/ " ///< SVR4 symtab entry name 25 #define ARFILE_LLVM_SYMTAB_NAME "#_LLVM_SYM_TAB_#" ///< LLVM symtab entry name 26 #define ARFILE_BSD4_SYMTAB_NAME "__.SYMDEF SORTED" ///< BSD4 symtab entry name 27 #define ARFILE_STRTAB_NAME "// " ///< Name of string table 28 #define ARFILE_PAD "\n" ///< inter-file align padding 29 #define ARFILE_MEMBER_MAGIC "`\n" ///< fmag field magic # 30 31 namespace llvm { 32 33 class LLVMContext; 34 35 /// The ArchiveMemberHeader structure is used internally for bitcode 36 /// archives. 37 /// The header precedes each file member in the archive. This structure is 38 /// defined using character arrays for direct and correct interpretation 39 /// regardless of the endianess of the machine that produced it. 40 /// @brief Archive File Member Header 41 class ArchiveMemberHeader { 42 /// @name Data 43 /// @{ 44 public: 45 char name[16]; ///< Name of the file member. 46 char date[12]; ///< File date, decimal seconds since Epoch 47 char uid[6]; ///< user id in ASCII decimal 48 char gid[6]; ///< group id in ASCII decimal 49 char mode[8]; ///< file mode in ASCII octal 50 char size[10]; ///< file size in ASCII decimal 51 char fmag[2]; ///< Always contains ARFILE_MAGIC_TERMINATOR 52 53 /// @} 54 /// @name Methods 55 /// @{ 56 public: 57 void init() { 58 memset(name,' ',16); 59 memset(date,' ',12); 60 memset(uid,' ',6); 61 memset(gid,' ',6); 62 memset(mode,' ',8); 63 memset(size,' ',10); 64 fmag[0] = '`'; 65 fmag[1] = '\n'; 66 } 67 68 bool checkSignature() const { 69 return 0 == memcmp(fmag, ARFILE_MEMBER_MAGIC,2); 70 } 71 }; 72 73 // Get just the externally visible defined symbols from the bitcode 74 bool GetBitcodeSymbols(const sys::Path& fName, 75 LLVMContext& Context, 76 std::vector<std::string>& symbols, 77 std::string* ErrMsg); 78 79 Module* GetBitcodeSymbols(const char *Buffer, unsigned Length, 80 const std::string& ModuleID, 81 LLVMContext& Context, 82 std::vector<std::string>& symbols, 83 std::string* ErrMsg); 84 } 85 86 #endif 87 88 // vim: sw=2 ai 89
