#include <queue>
#include <unordered_map>
+#include "dwarf2/comp-unit.h"
#include "dwarf2/index-cache.h"
#include "dwarf2/section.h"
#include "filename-seen-cache.h"
int nr_all_type_units_reallocs;
};
+struct dwarf2_cu;
struct dwarf2_debug_sections;
struct dwarf2_per_cu_data;
struct mapped_index;
TU. */
signatured_type *get_tu (int index);
- /* Free all cached compilation units. */
- void free_cached_comp_units ();
-
/* A convenience function to allocate a dwarf2_per_cu_data. The
returned object has its "index" field set properly. The object
is allocated on the dwarf2_per_bfd obstack. */
are doing. */
struct tu_stats tu_stats {};
- /* A chain of compilation units that are currently read in, so that
- they can be freed later. */
- dwarf2_per_cu_data *read_in_chain = NULL;
-
/* A table mapping DW_AT_dwo_name values to struct dwo_file objects.
This is NULL if the table hasn't been allocated yet. */
htab_up dwo_files;
/* The CUs we recently read. */
std::vector<dwarf2_per_cu_data *> just_read_cus;
- /* Table containing line_header indexed by offset and offset_in_dwz. */
- htab_up line_header_hash;
-
/* Table containing all filenames. This is an optional because the
table is lazily constructed on first access. */
gdb::optional<filename_seen_cache> filenames_cache;
/* CUs that are queued to be read. */
std::queue<dwarf2_queue_item> queue;
+ /* We keep a separate reference to the partial symtabs, in case we
+ are sharing them between objfiles. This is only set after
+ partial symbols have been read the first time. */
+ std::shared_ptr<psymtab_storage> partial_symtabs;
+
private:
/* The total number of per_cu and signatured_type objects that have
: objfile (objfile), per_bfd (per_bfd)
{}
+ ~dwarf2_per_objfile ();
+
/* Return pointer to string at .debug_line_str offset as read from BUF.
BUF is assumed to be in a compilation unit described by CU_HEADER.
Return *BYTES_READ_PTR count of bytes read from BUF. */
UNSIGNED_P controls if the integer is unsigned or not. */
struct type *int_type (int size_in_bytes, bool unsigned_p) const;
+ /* Get the dwarf2_cu matching PER_CU for this objfile. */
+ dwarf2_cu *get_cu (dwarf2_per_cu_data *per_cu);
+
+ /* Set the dwarf2_cu matching PER_CU for this objfile. */
+ void set_cu (dwarf2_per_cu_data *per_cu, dwarf2_cu *cu);
+
+ /* Remove/free the dwarf2_cu matching PER_CU for this objfile. */
+ void remove_cu (dwarf2_per_cu_data *per_cu);
+
+ /* Free all cached compilation units. */
+ void remove_all_cus ();
+
+ /* Increase the age counter on each CU compilation unit and free
+ any that are too old. */
+ void age_comp_units ();
+
/* Back link. */
struct objfile *objfile;
The mapping is done via (CU/TU + DIE offset) -> type. */
htab_up die_type_hash;
+ /* Table containing line_header indexed by offset and offset_in_dwz. */
+ htab_up line_header_hash;
+
private:
/* Hold the corresponding compunit_symtab for each CU or TU. This
is indexed by dwarf2_per_cu_data::index. A NULL value means
/* Map from signatured types to the corresponding struct type. */
std::unordered_map<signatured_type *, struct type *> m_type_map;
+
+ /* Map from the objfile-independent dwarf2_per_cu_data instances to the
+ corresponding objfile-dependent dwarf2_cu instances. */
+ std::unordered_map<dwarf2_per_cu_data *, dwarf2_cu *> m_dwarf2_cus;
};
/* Get the dwarf2_per_objfile associated to OBJFILE. */
not the DWO file. */
struct dwarf2_section_info *section;
- /* Set to non-NULL iff this CU is currently loaded. When it gets freed out
- of the CU cache it gets reset to NULL again. This is left as NULL for
- dummy CUs (a CU header, but nothing else). */
- struct dwarf2_cu *cu;
-
/* The unit type of this CU. */
enum dwarf_unit_type unit_type;
/* Backlink to the owner of this. */
dwarf2_per_bfd *per_bfd;
+ /* DWARF header of this CU. Note that dwarf2_cu reads its own version of the
+ header, which may differ from this one, since it may pass rcuh_kind::TYPE
+ to read_comp_unit_head, whereas for dwarf2_per_cu_data we always pass
+ rcuh_kind::COMPILE.
+
+ Don't access this field directly, use the get_header method instead. It
+ should be private, but we can't make it private at the moment. */
+ mutable comp_unit_head m_header;
+
+ /* True if HEADER has been read in.
+
+ Don't access this field directly. It should be private, but we can't make
+ it private at the moment. */
+ mutable bool m_header_read_in;
+
/* When dwarf2_per_bfd::using_index is true, the 'quick' field
is active. Otherwise, the 'psymtab' field is active. */
union
imported_symtabs = nullptr;
}
+ /* Get the header of this per_cu, reading it if necessary. */
+ const comp_unit_head *get_header () const;
+
/* Return the address size given in the compilation unit header for
this CU. */
int addr_size () const;
projects / deliverable / binutils-gdb.git / blobdiff