1 //===-- lib/Archive/ArchiveInternals.h -------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Internal implementation header for LLVM Archive files.
12 //===----------------------------------------------------------------------===//
14 #ifndef LIB_ARCHIVE_ARCHIVEINTERNALS_H
15 #define LIB_ARCHIVE_ARCHIVEINTERNALS_H
17 #include "llvm/Bitcode/Archive.h"
18 #include "llvm/System/TimeValue.h"
19 #include "llvm/ADT/StringExtras.h"
23 #define ARFILE_MAGIC "!<arch>\n" ///< magic string
24 #define ARFILE_MAGIC_LEN (sizeof(ARFILE_MAGIC)-1) ///< length of magic string
25 #define ARFILE_SVR4_SYMTAB_NAME "/ " ///< SVR4 symtab entry name
26 #define ARFILE_LLVM_SYMTAB_NAME "#_LLVM_SYM_TAB_#" ///< LLVM symtab entry name
27 #define ARFILE_BSD4_SYMTAB_NAME "__.SYMDEF SORTED" ///< BSD4 symtab entry name
28 #define ARFILE_STRTAB_NAME "// " ///< Name of string table
29 #define ARFILE_PAD "\n" ///< inter-file align padding
30 #define ARFILE_MEMBER_MAGIC "`\n" ///< fmag field magic #
34 /// The ArchiveMemberHeader structure is used internally for bitcode
36 /// The header precedes each file member in the archive. This structure is
37 /// defined using character arrays for direct and correct interpretation
38 /// regardless of the endianess of the machine that produced it.
39 /// @brief Archive File Member Header
40 class ArchiveMemberHeader {
44 char name[16]; ///< Name of the file member.
45 char date[12]; ///< File date, decimal seconds since Epoch
46 char uid[6]; ///< user id in ASCII decimal
47 char gid[6]; ///< group id in ASCII decimal
48 char mode[8]; ///< file mode in ASCII octal
49 char size[10]; ///< file size in ASCII decimal
50 char fmag[2]; ///< Always contains ARFILE_MAGIC_TERMINATOR
67 bool checkSignature() {
68 return 0 == memcmp(fmag, ARFILE_MEMBER_MAGIC,2);
72 // Get just the externally visible defined symbols from the bitcode
73 bool GetBitcodeSymbols(const sys::Path& fName,
74 std::vector<std::string>& symbols,
77 ModuleProvider* GetBitcodeSymbols(const unsigned char*Buffer,unsigned Length,
78 const std::string& ModuleID,
79 std::vector<std::string>& symbols,