diff options
Diffstat (limited to 'gold/archive.h')
| -rw-r--r-- | gold/archive.h | 63 |
1 files changed, 60 insertions, 3 deletions
diff --git a/gold/archive.h b/gold/archive.h index cca74b6..24fdb2b 100644 --- a/gold/archive.h +++ b/gold/archive.h @@ -38,6 +38,8 @@ class Input_objects; class Input_group; class Layout; class Symbol_table; +class Object; +class Read_symbols_data; // This class represents an archive--generally a libNAME.a file. // Archives have a symbol table and a list of objects. @@ -48,8 +50,9 @@ class Archive Archive(const std::string& name, Input_file* input_file, bool is_thin_archive, Dirsearch* dirpath, Task* task) : name_(name), input_file_(input_file), armap_(), armap_names_(), - extended_names_(), armap_checked_(), seen_offsets_(), - is_thin_archive_(is_thin_archive), dirpath_(dirpath), task_(task) + extended_names_(), armap_checked_(), seen_offsets_(), members_(), + is_thin_archive_(is_thin_archive), nested_archives_(), + dirpath_(dirpath), task_(task), num_members_(0) { } // The length of the magic string at the start of an archive. @@ -76,7 +79,7 @@ class Archive // Set up the archive: read the symbol map. void - setup(); + setup(Input_objects*); // Get a reference to the underlying file. File_read& @@ -131,6 +134,10 @@ class Archive void add_symbols(Symbol_table*, Layout*, Input_objects*, Mapfile*); + // Dump statistical information to stderr. + static void + print_stats(); + // Return the number of members in the archive. size_t count_members(); @@ -141,6 +148,13 @@ class Archive struct Archive_header; + // Total number of archives seen. + static unsigned int total_archives; + // Total number of archive members seen. + static unsigned int total_members; + // Number of archive members loaded. + static unsigned int total_members_loaded; + // Get a view into the underlying file. const unsigned char* get_view(off_t start, section_size_type size, bool aligned, bool cache) @@ -162,6 +176,30 @@ class Archive interpret_header(const Archive_header* hdr, off_t off, std::string* pname, off_t* nested_off) const; + // Get the file and offset for an archive member, which may be an + // external member of a thin archive. Set *INPUT_FILE to the + // file containing the actual member, *MEMOFF to the offset + // within that file (0 if not a nested archive), and *MEMBER_NAME + // to the name of the archive member. Return TRUE on success. + bool + get_file_and_offset(off_t off, Input_objects* input_objects, + Input_file** input_file, off_t* memoff, + std::string* member_name); + + // Return an ELF object for the member at offset OFF. Set *MEMBER_NAME to + // the name of the member. + Object* + get_elf_object_for_member(off_t off, Input_objects* input_objects); + + // Read the symbols from all the archive members in the link. + void + read_all_symbols(Input_objects* input_objects); + + // Read the symbols from an archive member in the link. OFF is the file + // offset of the member header. + void + read_symbols(Input_objects* input_objects, off_t off); + // Include all the archive members in the link. void include_all_members(Symbol_table*, Layout*, Input_objects*, Mapfile*); @@ -191,6 +229,21 @@ class Archive off_t file_offset; }; + // An entry in the archive map of offsets to members. + struct Archive_member + { + Archive_member() + : obj_(NULL), sd_(NULL) + { } + Archive_member(Object* obj, Read_symbols_data* sd) + : obj_(obj), sd_(sd) + { } + // The object file. + Object* obj_; + // The data to pass from read_symbols() to add_symbols(). + Read_symbols_data* sd_; + }; + // A simple hash code for off_t values. class Seen_hash { @@ -217,6 +270,8 @@ class Archive std::vector<bool> armap_checked_; // Track which elements have been included by offset. Unordered_set<off_t, Seen_hash> seen_offsets_; + // Table of objects whose symbols have been pre-read. + std::map<off_t, Archive_member> members_; // True if this is a thin archive. const bool is_thin_archive_; // Table of nested archives, indexed by filename. @@ -225,6 +280,8 @@ class Archive Dirsearch* dirpath_; // The task reading this archive. Task *task_; + // Number of members in this archive; + unsigned int num_members_; }; // This class is used to read an archive and pick out the desired |