/* Definitions for symbol file management in GDB.
- Copyright (C) 1992-2019 Free Software Foundation, Inc.
+ Copyright (C) 1992-2021 Free Software Foundation, Inc.
This file is part of GDB.
#include "bcache.h"
#include "gdbarch.h"
#include "gdbsupport/refcounted-object.h"
+#include "jit.h"
+#include "quick-symbol.h"
struct htab;
struct objfile_data;
/* Relocation offset applied to S. */
#define obj_section_offset(s) \
- (((s)->objfile->section_offsets)->offsets[gdb_bfd_section_index ((s)->objfile->obfd, (s)->the_bfd_section)])
+ (((s)->objfile->section_offsets)[gdb_bfd_section_index ((s)->objfile->obfd, (s)->the_bfd_section)])
/* The memory address of section S (vma + offset). */
#define obj_section_addr(s) \
+ bfd_section_size ((s)->the_bfd_section) \
+ obj_section_offset (s))
+#define ALL_OBJFILE_OSECTIONS(objfile, osect) \
+ for (osect = objfile->sections; osect < objfile->sections_end; osect++) \
+ if (osect->the_bfd_section == NULL) \
+ { \
+ /* Nothing. */ \
+ } \
+ else
+
+#define SECT_OFF_DATA(objfile) \
+ ((objfile->sect_index_data == -1) \
+ ? (internal_error (__FILE__, __LINE__, \
+ _("sect_index_data not initialized")), -1) \
+ : objfile->sect_index_data)
+
+#define SECT_OFF_RODATA(objfile) \
+ ((objfile->sect_index_rodata == -1) \
+ ? (internal_error (__FILE__, __LINE__, \
+ _("sect_index_rodata not initialized")), -1) \
+ : objfile->sect_index_rodata)
+
+#define SECT_OFF_TEXT(objfile) \
+ ((objfile->sect_index_text == -1) \
+ ? (internal_error (__FILE__, __LINE__, \
+ _("sect_index_text not initialized")), -1) \
+ : objfile->sect_index_text)
+
+/* Sometimes the .bss section is missing from the objfile, so we don't
+ want to die here. Let the users of SECT_OFF_BSS deal with an
+ uninitialized section index. */
+#define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss
+
/* The "objstats" structure provides a place for gdb to record some
interesting information about its internal state at runtime, on a
per objfile basis, such as information about the number of symbols
struct objstats
{
- /* Number of partial symbols read. */
- int n_psyms = 0;
-
/* Number of full symbols read. */
int n_syms = 0;
#define OBJSTAT(objfile, expr) (objfile -> stats.expr)
#define OBJSTATS struct objstats stats
extern void print_objfile_statistics (void);
-extern void print_symbol_bcache_statistics (void);
/* Number of entries in the minimal symbol hash table. */
#define MINIMAL_SYMBOL_HASH_SIZE 2039
auto_obstack storage_obstack;
- /* Byte cache for file names. */
-
- gdb::bcache filename_cache;
-
- /* Byte cache for macros. */
+ /* String cache. */
- gdb::bcache macro_cache;
+ gdb::bcache string_cache;
/* The gdbarch associated with the BFD. Note that this gdbarch is
determined solely from BFD information, without looking at target
GDB typically reads symbols twice -- first an initial scan which just
reads "partial symbols"; these are partial information for the
- static/global symbols in a symbol file. When later looking up symbols,
- objfile->sf->qf->lookup_symbol is used to check if we only have a partial
+ static/global symbols in a symbol file. When later looking up
+ symbols, lookup_symbol is used to check if we only have a partial
symbol and if so, read and expand the full compunit. */
struct objfile
void reset_psymtabs ()
{
- psymbol_map.clear ();
partial_symtabs.reset (new psymtab_storage ());
}
return separate_debug_range (this);
}
+ CORE_ADDR text_section_offset () const
+ {
+ return section_offsets[SECT_OFF_TEXT (this)];
+ }
+
+ CORE_ADDR data_section_offset () const
+ {
+ return section_offsets[SECT_OFF_DATA (this)];
+ }
+
+ /* Intern STRING and return the unique copy. The copy has the same
+ lifetime as the per-BFD object. */
+ const char *intern (const char *str)
+ {
+ return (const char *) per_bfd->string_cache.insert (str, strlen (str) + 1);
+ }
+
+ /* Intern STRING and return the unique copy. The copy has the same
+ lifetime as the per-BFD object. */
+ const char *intern (const std::string &str)
+ {
+ return (const char *) per_bfd->string_cache.insert (str.c_str (),
+ str.size () + 1);
+ }
+
+ /* Retrieve the gdbarch associated with this objfile. */
+ struct gdbarch *arch () const
+ {
+ return per_bfd->gdbarch;
+ }
+
+ /* Return true if OBJFILE has partial symbols. */
+
+ bool has_partial_symbols ();
+
+ /* See quick_symbol_functions. */
+ struct symtab *find_last_source_symtab ();
+
+ /* See quick_symbol_functions. */
+ void forget_cached_source_info ();
+
+ /* See quick_symbol_functions. */
+ bool map_symtabs_matching_filename
+ (const char *name, const char *real_path,
+ gdb::function_view<bool (symtab *)> callback);
+
+ /* See quick_symbol_functions. */
+ struct compunit_symtab *lookup_symbol (block_enum kind, const char *name,
+ domain_enum domain);
+
+ /* See quick_symbol_functions. */
+ void print_stats (bool print_bcache);
+
+ /* See quick_symbol_functions. */
+ void dump ();
+
+ /* See quick_symbol_functions. */
+ void expand_symtabs_for_function (const char *func_name);
+
+ /* See quick_symbol_functions. */
+ void expand_all_symtabs ();
+
+ /* See quick_symbol_functions. */
+ void expand_symtabs_with_fullname (const char *fullname);
+
+ /* See quick_symbol_functions. */
+ void map_matching_symbols
+ (const lookup_name_info &name, domain_enum domain,
+ int global,
+ gdb::function_view<symbol_found_callback_ftype> callback,
+ symbol_compare_ftype *ordered_compare);
+
+ /* See quick_symbol_functions. */
+ void expand_symtabs_matching
+ (gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,
+ const lookup_name_info *lookup_name,
+ gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher,
+ gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify,
+ enum search_domain kind);
+
+ /* See quick_symbol_functions. */
+ struct compunit_symtab *find_pc_sect_compunit_symtab
+ (struct bound_minimal_symbol msymbol,
+ CORE_ADDR pc,
+ struct obj_section *section,
+ int warn_if_readin);
+
+ /* See quick_symbol_functions. */
+ void map_symbol_filenames (symbol_filename_ftype *fun, void *data,
+ int need_fullname);
+
+ /* See quick_symbol_functions. */
+ struct compunit_symtab *find_compunit_symtab_by_address (CORE_ADDR address);
+
+ /* See quick_symbol_functions. */
+ enum language lookup_global_symbol_language (const char *name,
+ domain_enum domain,
+ bool *symbol_found_p);
+
/* The object file's original name as specified by the user,
made absolute, and tilde-expanded. However, it is not canonicalized
struct obstack objfile_obstack {};
- /* Map symbol addresses to the partial symtab that defines the
- object at that address. */
-
- std::vector<std::pair<CORE_ADDR, partial_symtab *>> psymbol_map;
-
/* Structure which keeps track of functions that manipulate objfile's
of the same type as this objfile. I.e. the function to read partial
symbols for example. Note that this structure is in statically
const struct sym_fns *sf = nullptr;
+ /* The "quick" (aka partial) symbol functions for this symbol
+ reader. */
+ quick_symbol_functions_up qf;
+
/* Per objfile data-pointers required by other GDB modules. */
REGISTRY_FIELDS {};
/* Set of relocation offsets to apply to each section.
The table is indexed by the_bfd_section->index, thus it is generally
as large as the number of sections in the binary.
- The table is stored on the objfile_obstack.
These offsets indicate that all symbols (including partial and
minimal symbols) which have been read have been relocated by this
much. Symbols which are yet to be read need to be relocated by it. */
- struct section_offsets *section_offsets = nullptr;
- int num_sections = 0;
+ ::section_offsets section_offsets;
/* Indexes in the section_offsets array. These are initialized by the
*_symfile_offsets() family of functions (som_symfile_offsets,
store these here rather than in struct block. Static links must be
allocated on the objfile's obstack. */
htab_up static_links;
+
+ /* JIT-related data for this objfile, if the objfile is a JITer;
+ that is, it produces JITed objfiles. */
+ std::unique_ptr<jiter_objfile_data> jiter_data = nullptr;
+
+ /* JIT-related data for this objfile, if the objfile is JITed;
+ that is, it was produced by a JITer. */
+ std::unique_ptr<jited_objfile_data> jited_data = nullptr;
+
+ /* A flag that is set to true if the JIT interface symbols are not
+ found in this objfile, so that we can skip the symbol lookup the
+ next time. If an objfile does not have the symbols, it will
+ never have them. */
+ bool skip_jit_symbol_lookup = false;
};
/* A deleter for objfile. */
/* Declarations for functions defined in objfiles.c */
-extern struct gdbarch *get_objfile_arch (const struct objfile *);
-
extern int entry_point_address_query (CORE_ADDR *entry_p);
extern CORE_ADDR entry_point_address (void);
extern void free_objfile_separate_debug (struct objfile *);
-extern void objfile_relocate (struct objfile *, const struct section_offsets *);
+extern void objfile_relocate (struct objfile *, const section_offsets &);
extern void objfile_rebase (struct objfile *, CORE_ADDR);
-extern int objfile_has_partial_symbols (struct objfile *objfile);
-
extern int objfile_has_full_symbols (struct objfile *objfile);
extern int objfile_has_symbols (struct objfile *objfile);
extern void objfiles_changed (void);
-extern int is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile);
+/* Return true if ADDR maps into one of the sections of OBJFILE and false
+ otherwise. */
+
+extern bool is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile);
/* Return true if ADDRESS maps into one of the sections of a
OBJF_SHARED objfile of PSPACE and false otherwise. */
-extern int shared_objfile_contains_address_p (struct program_space *pspace,
- CORE_ADDR address);
+extern bool shared_objfile_contains_address_p (struct program_space *pspace,
+ CORE_ADDR address);
/* This operation deletes all objfile entries that represent solibs that
weren't explicitly loaded by the user, via e.g., the add-symbol-file
static inline int
in_plt_section (CORE_ADDR pc)
{
- return pc_in_section (pc, ".plt");
+ return (pc_in_section (pc, ".plt")
+ || pc_in_section (pc, ".plt.sec"));
}
/* Keep a registry of per-objfile data-pointers required by other GDB
(struct gdbarch *gdbarch,
iterate_over_objfiles_in_search_order_cb_ftype *cb,
void *cb_data, struct objfile *current_objfile);
-\f
-
-#define ALL_OBJFILE_OSECTIONS(objfile, osect) \
- for (osect = objfile->sections; osect < objfile->sections_end; osect++) \
- if (osect->the_bfd_section == NULL) \
- { \
- /* Nothing. */ \
- } \
- else
-
-#define SECT_OFF_DATA(objfile) \
- ((objfile->sect_index_data == -1) \
- ? (internal_error (__FILE__, __LINE__, \
- _("sect_index_data not initialized")), -1) \
- : objfile->sect_index_data)
-
-#define SECT_OFF_RODATA(objfile) \
- ((objfile->sect_index_rodata == -1) \
- ? (internal_error (__FILE__, __LINE__, \
- _("sect_index_rodata not initialized")), -1) \
- : objfile->sect_index_rodata)
-
-#define SECT_OFF_TEXT(objfile) \
- ((objfile->sect_index_text == -1) \
- ? (internal_error (__FILE__, __LINE__, \
- _("sect_index_text not initialized")), -1) \
- : objfile->sect_index_text)
-
-/* Sometimes the .bss section is missing from the objfile, so we don't
- want to die here. Let the users of SECT_OFF_BSS deal with an
- uninitialized section index. */
-#define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss
/* Reset the per-BFD storage area on OBJ. */
projects / deliverable / binutils-gdb.git / blobdiff