{
class Task;
+class Input_argument;
class Input_file;
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.
{
public:
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)
- { }
+ bool is_thin_archive, Dirsearch* dirpath, Task* task);
// The length of the magic string at the start of an archive.
static const int sarmag = 8;
name() const
{ return this->name_; }
+ // The input file.
+ const Input_file*
+ input_file() const
+ { return this->input_file_; }
+
// The file name.
const std::string&
filename() const
// Select members from the archive as needed and add them to the
// link.
- void
+ bool
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();
+ // Return the no-export flag.
+ bool
+ no_export()
+ { return this->no_export_; }
+
private:
Archive(const Archive&);
Archive& operator=(const 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)
interpret_header(const Archive_header* hdr, off_t off, std::string* pname,
off_t* nested_off) const;
- // Include all the archive members in the link.
+ // 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_file** input_file, off_t* memoff,
+ off_t* memsize, std::string* member_name);
+
+ // Return an ELF object for the member at offset OFF.
+ Object*
+ get_elf_object_for_member(off_t off, bool*);
+
+ // Read the symbols from all the archive members in the link.
void
+ read_all_symbols();
+
+ // Read the symbols from an archive member in the link. OFF is the file
+ // offset of the member header.
+ void
+ read_symbols(off_t off);
+
+ // Include all the archive members in the link.
+ bool
include_all_members(Symbol_table*, Layout*, Input_objects*, Mapfile*);
// Include an archive member in the link.
- void
+ bool
include_member(Symbol_table*, Layout*, Input_objects*, off_t off,
Mapfile*, Symbol*, const char* why);
+ // Return whether we found this archive by searching a directory.
+ bool
+ searched_for() const
+ { return this->input_file_->will_search_for(); }
+
// Iterate over archive members.
class const_iterator;
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
{
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_;
+ // True if we have included at least one object from this archive.
+ bool included_member_;
// Table of nested archives, indexed by filename.
Nested_archive_table nested_archives_;
// The directory search path.
Dirsearch* dirpath_;
// The task reading this archive.
Task *task_;
+ // Number of members in this archive;
+ unsigned int num_members_;
+ // True if we exclude this library archive from automatic export.
+ bool no_export_;
};
// This class is used to read an archive and pick out the desired
{
public:
Add_archive_symbols(Symbol_table* symtab, Layout* layout,
- Input_objects* input_objects, Mapfile* mapfile,
+ Input_objects* input_objects, Dirsearch* dirpath,
+ int dirindex, Mapfile* mapfile,
+ const Input_argument* input_argument,
Archive* archive, Input_group* input_group,
Task_token* this_blocker,
Task_token* next_blocker)
: symtab_(symtab), layout_(layout), input_objects_(input_objects),
- mapfile_(mapfile), archive_(archive), input_group_(input_group),
- this_blocker_(this_blocker), next_blocker_(next_blocker)
+ dirpath_(dirpath), dirindex_(dirindex), mapfile_(mapfile),
+ input_argument_(input_argument), archive_(archive),
+ input_group_(input_group), this_blocker_(this_blocker),
+ next_blocker_(next_blocker)
{ }
~Add_archive_symbols();
Symbol_table* symtab_;
Layout* layout_;
Input_objects* input_objects_;
+ Dirsearch* dirpath_;
+ int dirindex_;
Mapfile* mapfile_;
+ const Input_argument* input_argument_;
Archive* archive_;
Input_group* input_group_;
Task_token* this_blocker_;
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