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76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===-- lib/Archive/ArchiveInternals.h -------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Internal implementation header for LLVM Archive files.
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//
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//===----------------------------------------------------------------------===//
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#ifndef TOOLS_LLVM_AR_ARCHIVEINTERNALS_H
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#define TOOLS_LLVM_AR_ARCHIVEINTERNALS_H
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#include "Archive.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/TimeValue.h"
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#include <cstring>
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#define ARFILE_MAGIC "!<arch>\n" ///< magic string
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#define ARFILE_MAGIC_LEN (sizeof(ARFILE_MAGIC)-1) ///< length of magic string
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#define ARFILE_SVR4_SYMTAB_NAME "/ " ///< SVR4 symtab entry name
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#define ARFILE_BSD4_SYMTAB_NAME "__.SYMDEF SORTED" ///< BSD4 symtab entry name
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#define ARFILE_STRTAB_NAME "// " ///< Name of string table
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#define ARFILE_PAD "\n" ///< inter-file align padding
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#define ARFILE_MEMBER_MAGIC "`\n" ///< fmag field magic #
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namespace llvm {
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class LLVMContext;
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/// The ArchiveMemberHeader structure is used internally for bitcode
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/// archives.
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/// The header precedes each file member in the archive. This structure is
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/// defined using character arrays for direct and correct interpretation
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/// regardless of the endianess of the machine that produced it.
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/// @brief Archive File Member Header
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class ArchiveMemberHeader {
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/// @name Data
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/// @{
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public:
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char name[16]; ///< Name of the file member.
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char date[12]; ///< File date, decimal seconds since Epoch
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char uid[6]; ///< user id in ASCII decimal
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char gid[6]; ///< group id in ASCII decimal
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char mode[8]; ///< file mode in ASCII octal
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char size[10]; ///< file size in ASCII decimal
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char fmag[2]; ///< Always contains ARFILE_MAGIC_TERMINATOR
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/// @}
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/// @name Methods
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/// @{
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public:
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void init() {
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memset(name,' ',16);
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memset(date,' ',12);
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memset(uid,' ',6);
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memset(gid,' ',6);
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memset(mode,' ',8);
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memset(size,' ',10);
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fmag[0] = '`';
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fmag[1] = '\n';
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}
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bool checkSignature() const {
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return 0 == memcmp(fmag, ARFILE_MEMBER_MAGIC,2);
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}
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};
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}
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#endif
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// vim: sw=2 ai
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