diff options
Diffstat (limited to 'lib/Archive/ArchiveInternals.h')
| -rw-r--r-- | lib/Archive/ArchiveInternals.h | 132 |
1 files changed, 24 insertions, 108 deletions
diff --git a/lib/Archive/ArchiveInternals.h b/lib/Archive/ArchiveInternals.h index dde83583c9a..77d2d5481bc 100644 --- a/lib/Archive/ArchiveInternals.h +++ b/lib/Archive/ArchiveInternals.h @@ -16,21 +16,39 @@ #include "llvm/Bytecode/Archive.h" #include "llvm/System/TimeValue.h" +#include "llvm/ADT/StringExtras.h" #define ARFILE_MAGIC "!<arch>\n" ///< magic string #define ARFILE_MAGIC_LEN (sizeof(ARFILE_MAGIC)-1) ///< length of magic string -#define ARFILE_SYMTAB_NAME "/" ///< name of symtab entry -#define ARFILE_STRTAB_NAME "//" ///< name of strtab entry -#define ARFILE_PAD '\n' ///< inter-file align padding +#define ARFILE_SYMTAB_NAME "/ " ///< regular symtab entry +#define ARFILE_STRTAB_NAME "// " ///< Name of string table +#define ARFILE_LLVM_SYMTAB_NAME "#_LLVM_SYM_TAB_#" ///< LLVM's symtab entry +#define ARFILE_PAD "\n" ///< inter-file align padding +#define ARFILE_MEMBER_MAGIC "`\n" ///< fmag field magic # namespace llvm { - /// The ArchiveMemberHeader structure is used internally for bytecode archives. + /// The ArchiveMemberHeader structure is used internally for bytecode + /// archives. /// The header precedes each file member in the archive. This structure is /// defined using character arrays for direct and correct interpretation /// regardless of the endianess of the machine that produced it. /// @brief Archive File Member Header class ArchiveMemberHeader { + /// @name Data + /// @{ + public: + char name[16];///< Name of the file member. + char date[12]; ///< File date, decimal seconds since Epoch + char uid[6]; ///< user id in ASCII decimal + char gid[6]; ///< group id in ASCII decimal + char mode[8]; ///< file mode in ASCII octal + char size[10]; ///< file size in ASCII decimal + char fmag[2]; ///< Always contains ARFILE_MAGIC_TERMINATOR + + /// @} + /// @name Methods + /// @{ public: void init() { memset(name,' ',16); @@ -42,115 +60,13 @@ namespace llvm { fmag[0] = '`'; fmag[1] = '\n'; } - void setDate( int secondsSinceEpoch = 0 ) { - if (secondsSinceEpoch == 0) { - sys::TimeValue tv = sys::TimeValue::now(); - uint64_t secs; uint32_t nanos; - tv.GetTimespecTime(secs,nanos); - secondsSinceEpoch = (int) secs; - } - char buffer[20]; - sprintf(buffer,"%d", secondsSinceEpoch); - memcpy(date,buffer,strlen(buffer)); - } - - void setSize(size_t sz) { - char buffer[20]; - sprintf(buffer, "%u", (unsigned)sz); - memcpy(size,buffer,strlen(buffer)); - } - - void setMode(int m) { - char buffer[20]; - sprintf(buffer, "%o", m); - memcpy(mode,buffer,strlen(buffer)); - } - - void setUid(unsigned u) { - char buffer[20]; - sprintf(buffer, "%u", u); - memcpy(uid,buffer,strlen(buffer)); - } - - void setGid(unsigned g) { - char buffer[20]; - sprintf(buffer, "%u", g); - memcpy(gid,buffer,strlen(buffer)); - } - bool setName(const std::string& nm) { - if (nm.length() > 0 && nm.length() <= 16) { - memcpy(name,nm.c_str(),nm.length()); - for (int i = nm.length()+1; i < 16; i++ ) name[i] = ' '; - return true; - } - return false; + bool checkSignature() { + return 0 == memcmp(fmag, ARFILE_MEMBER_MAGIC,2); } - private: - char name[16]; ///< Name of the file member. The filename is terminated with '/' - ///< and blanks. The empty name (/ and 15 blanks) is for the - ///< symbol table. The special name "//" and 15 blanks is for - ///< the string table, used for long file names. It must be - ///< first in the archive. - char date[12]; ///< File date, decimal seconds since Epoch - char uid[6]; ///< user id in ASCII decimal - char gid[6]; ///< group id in ASCII decimal - char mode[8]; ///< file mode in ASCII octal - char size[10]; ///< file size in ASCII decimal - char fmag[2]; ///< Always contains ARFILE_MAGIC_TERMINATOR - }; - /// The ArchiveInternals class is used to hold the content of the archive - /// while it is in memory. It also provides the bulk of the implementation for - /// the llvm:Archive class's interface. - class Archive::ArchiveInternals { - /// @name Types - /// @{ - public: - typedef std::vector<std::string> StrTab; - - /// This structure holds information for one member in the archive. It is - /// used temporarily while the contents of the archive are being - /// determined. - struct MemberInfo { - MemberInfo() {} - sys::Path path; - std::string name; - sys::Path::StatusInfo status; - StrTab symbols; - unsigned offset; - }; - - /// @} - /// @name Methods - /// @{ - public: - /// @brief Add a file member to the archive. - void addFileMember( - const sys::Path& path, ///< The path to the file to be added - const std::string& name, ///< The name for the member - const StrTab* syms = 0 ///< The symbol table of the member - ); - - /// @brief Write the accumulated archive information to an archive file - void writeArchive(); - void writeMember(const MemberInfo& member,std::ofstream& ARFile); - void writeSymbolTable(std::ofstream& ARFile); - void writeInteger(int num, std::ofstream& ARFile); - - /// @} - /// @name Data - /// @{ - private: - friend class Archive; ///< Parent class is a friend - sys::Path fname; ///< Path to the archive file - std::vector<MemberInfo> members; ///< Info about member files - Archive::SymTab* symtab; ///< User's symbol table - - /// @} - }; } #endif |