summaryrefslogtreecommitdiff
path: root/lib/Archive/ArchiveInternals.h
diff options
context:
space:
mode:
authorReid Spencer <rspencer@reidspencer.com>2004-11-14 21:57:46 +0000
committerReid Spencer <rspencer@reidspencer.com>2004-11-14 21:57:46 +0000
commitbc9fc845a0b595447d11146805475ff4ea2a6a0b (patch)
tree699c7cc20fdc359cd4d86a60d0ae0a24373b4d44 /lib/Archive/ArchiveInternals.h
parentcf6afc623957682d3f7813cc72742dd0100bf5f1 (diff)
Implementation declarations for Archive
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17766 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Archive/ArchiveInternals.h')
-rw-r--r--lib/Archive/ArchiveInternals.h132
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