/* Definitions for reading symbol files into GDB.
- Copyright (C) 1990-2013 Free Software Foundation, Inc.
+ Copyright (C) 1990-2017 Free Software Foundation, Inc.
This file is part of GDB.
/* This file requires that you first include "bfd.h". */
#include "symtab.h"
#include "probe.h"
+#include "symfile-add-flags.h"
+#include "objfile-flags.h"
+#include "gdb_bfd.h"
+#include "common/function-view.h"
/* Opaque declarations. */
struct target_section;
int size;
};
+struct other_sections
+{
+ CORE_ADDR addr;
+ char *name;
+
+ /* SECTINDEX must be valid for associated BFD or set to -1. */
+ int sectindex;
+};
+
/* Define an array of addresses to accommodate non-contiguous dynamic
loading of modules. This is for use when entering commands, so we
can keep track of the section names until we read the file and can
available. */
size_t num_sections;
/* Sections whose names are file format dependent. */
- struct other_sections
- {
- CORE_ADDR addr;
- char *name;
-
- /* SECTINDEX must be valid for associated BFD or set to -1. */
- int sectindex;
- } other[1];
+ struct other_sections other[1];
};
typedef void (symbol_filename_ftype) (const char *filename,
const char *fullname, void *data);
+/* Callback for quick_symbol_functions->expand_symtabs_matching
+ to match a file name. */
+
+typedef bool (expand_symtabs_file_matcher_ftype) (const char *filename,
+ bool basenames);
+
+/* Callback for quick_symbol_functions->expand_symtabs_matching
+ to match a symbol name. */
+
+typedef bool (expand_symtabs_symbol_matcher_ftype) (const char *name);
+
+/* Callback for quick_symbol_functions->expand_symtabs_matching
+ to be called after a symtab has been expanded. */
+
+typedef void (expand_symtabs_exp_notify_ftype) (compunit_symtab *symtab);
+
/* The "quick" symbol functions exist so that symbol readers can
avoiding an initial read of all the symbols. For example, symbol
readers might choose to use the "partial symbol table" utilities,
/* Expand and iterate over each "partial" symbol table in OBJFILE
where the source file is named NAME.
- If NAME is not absolute, a match after a '/' in the symbol
- table's file name will also work. FULL_PATH is the absolute file
- name, and REAL_PATH is the same, run through gdb_realpath.
+ If NAME is not absolute, a match after a '/' in the symbol table's
+ file name will also work, REAL_PATH is NULL then. If NAME is
+ absolute then REAL_PATH is non-NULL absolute file name as resolved
+ via gdb_realpath from NAME.
If a match is found, the "partial" symbol table is expanded.
Then, this calls iterate_over_some_symtabs (or equivalent) over
- all newly-created symbol tables, passing CALLBACK and DATA to it.
+ all newly-created symbol tables, passing CALLBACK to it.
The result of this call is returned. */
- int (*map_symtabs_matching_filename) (struct objfile *objfile,
- const char *name,
- const char *full_path,
- const char *real_path,
- int (*callback) (struct symtab *,
- void *),
- void *data);
+ bool (*map_symtabs_matching_filename)
+ (struct objfile *objfile, const char *name, const char *real_path,
+ gdb::function_view<bool (symtab *)> callback);
/* Check to see if the symbol is defined in a "partial" symbol table
- of OBJFILE. KIND should be either GLOBAL_BLOCK or STATIC_BLOCK,
+ of OBJFILE. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK,
depending on whether we want to search global symbols or static
symbols. NAME is the name of the symbol to look for. DOMAIN
indicates what sort of symbol to search for.
- Returns the newly-expanded symbol table in which the symbol is
+ Returns the newly-expanded compunit in which the symbol is
defined, or NULL if no such symbol table exists. If OBJFILE
- contains !TYPE_OPAQUE symbol prefer its symtab. If it contains
- only TYPE_OPAQUE symbol(s), return at least that symtab. */
- struct symtab *(*lookup_symbol) (struct objfile *objfile,
- int kind, const char *name,
- domain_enum domain);
+ contains !TYPE_OPAQUE symbol prefer its compunit. If it contains
+ only TYPE_OPAQUE symbol(s), return at least that compunit. */
+ struct compunit_symtab *(*lookup_symbol) (struct objfile *objfile,
+ int block_index, const char *name,
+ domain_enum domain);
/* Print statistics about any indices loaded for OBJFILE. The
statistics should be printed to gdb_stdout. This is used for
/* This is called by objfile_relocate to relocate any indices loaded
for OBJFILE. */
void (*relocate) (struct objfile *objfile,
- struct section_offsets *new_offsets,
- struct section_offsets *delta);
+ const struct section_offsets *new_offsets,
+ const struct section_offsets *delta);
/* Find all the symbols in OBJFILE named FUNC_NAME, and ensure that
the corresponding symbol tables are loaded. */
/* Read all symbol tables associated with OBJFILE. */
void (*expand_all_symtabs) (struct objfile *objfile);
- /* Read all symbol tables associated with OBJFILE which have the
- file name FILENAME.
+ /* Read all symbol tables associated with OBJFILE which have
+ symtab_to_fullname equal to FULLNAME.
This is for the purposes of examining code only, e.g., expand_line_sal.
The routine may ignore debug info that is known to not be useful with
code, e.g., DW_TAG_type_unit for dwarf debug info. */
- void (*expand_symtabs_with_filename) (struct objfile *objfile,
- const char *filename);
+ void (*expand_symtabs_with_fullname) (struct objfile *objfile,
+ const char *fullname);
- /* Return the file name of the file holding the global symbol in OBJFILE
- named NAME. If no such symbol exists in OBJFILE, return NULL. */
- const char *(*find_symbol_file) (struct objfile *objfile, const char *name);
-
- /* Find global or static symbols in all tables that are in NAMESPACE
+ /* Find global or static symbols in all tables that are in DOMAIN
and for which MATCH (symbol name, NAME) == 0, passing each to
CALLBACK, reading in partial symbol tables as needed. Look
through global symbols if GLOBAL and otherwise static symbols.
CALLBACK returns 0 to indicate that the scan should continue, or
non-zero to indicate that the scan should be terminated. */
- void (*map_matching_symbols) (const char *name, domain_enum namespace,
- struct objfile *, int global,
+ void (*map_matching_symbols) (struct objfile *,
+ const char *name, domain_enum domain,
+ int global,
int (*callback) (struct block *,
struct symbol *, void *),
void *data,
/* Expand all symbol tables in OBJFILE matching some criteria.
FILE_MATCHER is called for each file in OBJFILE. The file name
- and the DATA argument are passed to it. If it returns zero, this
- file is skipped. If FILE_MATCHER is NULL such file is not skipped.
-
- Otherwise, if KIND does not match this symbol is skipped.
+ is passed to it. If the matcher returns false, the file is
+ skipped. If FILE_MATCHER is NULL the file is not skipped. If
+ BASENAMES is true the matcher should consider only file base
+ names (the passed file name is already only the lbasename'd
+ part).
- If even KIND matches, then NAME_MATCHER is called for each symbol
- defined in the file. The symbol "search" name and DATA are passed
- to NAME_MATCHER.
+ Otherwise, if KIND does not match, this symbol is skipped.
- If NAME_MATCHER returns zero, then this symbol is skipped.
+ If even KIND matches, SYMBOL_MATCHER is called for each symbol
+ defined in the file. The symbol "search" name is passed to
+ SYMBOL_MATCHER.
- Otherwise, this symbol's symbol table is expanded.
+ If SYMBOL_MATCHER returns false, then the symbol is skipped.
- DATA is user data that is passed unmodified to the callback
- functions. */
+ Otherwise, the symbol's symbol table is expanded. */
void (*expand_symtabs_matching)
(struct objfile *objfile,
- int (*file_matcher) (const char *, void *),
- int (*name_matcher) (const char *, void *),
- enum search_domain kind,
- void *data);
-
- /* Return the symbol table from OBJFILE that contains PC and
- SECTION. Return NULL if there is no such symbol table. This
- should return the symbol table that contains a symbol whose
+ gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,
+ gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher,
+ gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify,
+ enum search_domain kind);
+
+ /* Return the comp unit from OBJFILE that contains PC and
+ SECTION. Return NULL if there is no such compunit. This
+ should return the compunit that contains a symbol whose
address exactly matches PC, or, if there is no exact match, the
- symbol table that contains a symbol whose address is closest to
+ compunit that contains a symbol whose address is closest to
PC. */
- struct symtab *(*find_pc_sect_symtab) (struct objfile *objfile,
- struct minimal_symbol *msymbol,
- CORE_ADDR pc,
- struct obj_section *section,
- int warn_if_readin);
+ struct compunit_symtab *(*find_pc_sect_compunit_symtab)
+ (struct objfile *objfile, struct bound_minimal_symbol msymbol,
+ CORE_ADDR pc, struct obj_section *section, int warn_if_readin);
/* Call a callback for every file defined in OBJFILE whose symtab is
not already read in. FUN is the callback. It is passed the file's
The returned value does not have to be freed and it has lifetime of the
OBJFILE. */
VEC (probe_p) *(*sym_get_probes) (struct objfile *);
-
- /* Return the number of arguments available to PROBE. PROBE will
- have come from a call to this objfile's sym_get_probes method.
- If you provide an implementation of sym_get_probes, you must
- implement this method as well. */
- unsigned (*sym_get_probe_argument_count) (struct probe *probe);
-
- /* Evaluate the Nth argument available to PROBE. PROBE will have
- come from a call to this objfile's sym_get_probes method. N will
- be between 0 and the number of arguments available to this probe.
- FRAME is the frame in which the evaluation is done; the frame's
- PC will match the address of the probe. If you provide an
- implementation of sym_get_probes, you must implement this method
- as well. */
- struct value *(*sym_evaluate_probe_argument) (struct probe *probe,
- unsigned n);
-
- /* Compile the Nth probe argument to an agent expression. PROBE
- will have come from a call to this objfile's sym_get_probes
- method. N will be between 0 and the number of arguments
- available to this probe. EXPR and VALUE are the agent expression
- that is being updated. */
- void (*sym_compile_to_ax) (struct probe *probe,
- struct agent_expr *expr,
- struct axs_value *value,
- unsigned n);
-
- /* Relocate the probe section of OBJFILE. */
- void (*sym_relocate_probe) (struct objfile *objfile,
- struct section_offsets *new_offsets,
- struct section_offsets *delta);
};
/* Structure to keep track of symbol reading functions for various
struct sym_fns
{
-
- /* BFD flavour that we handle, or (as a special kludge, see
- xcoffread.c, (enum bfd_flavour)-1 for xcoff). */
-
- enum bfd_flavour sym_flavour;
-
/* Initializes anything that is global to the entire symbol table.
It is called during symbol_file_add, when we begin debugging an
entirely new program. */
file we are reading. SYMFILE_FLAGS are the flags passed to
symbol_file_add & co. */
- void (*sym_read) (struct objfile *, int);
+ void (*sym_read) (struct objfile *, symfile_add_flags);
/* Read the partial symbols for an objfile. This may be NULL, in which case
gdb has to check other ways if this objfile has any symbols. This may
void (*sym_finish) (struct objfile *);
+
/* This function produces a file-dependent section_offsets
- structure, allocated in the objfile's storage, and based on the
- parameter. The parameter is currently a CORE_ADDR (FIXME!) for
- backward compatibility with the higher levels of GDB. It should
- probably be changed to a string, where NULL means the default,
- and others are parsed in a file dependent way. */
+ structure, allocated in the objfile's storage.
+
+ The section_addr_info structure contains the offset of loadable and
+ allocated sections, relative to the absolute offsets found in the BFD. */
- void (*sym_offsets) (struct objfile *, struct section_addr_info *);
+ void (*sym_offsets) (struct objfile *, const struct section_addr_info *);
/* This function produces a format-independent description of
the segments of ABFD. Each segment is a unit of the file
the line table cannot be read while processing the debugging
information. */
- void (*sym_read_linetable) (void);
+ void (*sym_read_linetable) (struct objfile *);
/* Relocate the contents of a debug section SECTP. The
contents are stored in BUF if it is non-NULL, or returned in a
extern void relative_addr_info_to_section_offsets
(struct section_offsets *section_offsets, int num_sections,
- struct section_addr_info *addrs);
+ const struct section_addr_info *addrs);
extern void addr_info_make_relative (struct section_addr_info *addrs,
bfd *abfd);
do anything special. */
extern void default_symfile_offsets (struct objfile *objfile,
- struct section_addr_info *);
+ const struct section_addr_info *);
/* The default version of sym_fns.sym_segments for readers that don't
do anything special. */
extern bfd_byte *default_symfile_relocate (struct objfile *objfile,
asection *sectp, bfd_byte *buf);
-extern struct symtab *allocate_symtab (const char *, struct objfile *)
+extern struct symtab *allocate_symtab (struct compunit_symtab *, const char *)
ATTRIBUTE_NONNULL (1);
-extern void add_symtab_fns (const struct sym_fns *);
-
-/* This enum encodes bit-flags passed as ADD_FLAGS parameter to
- syms_from_objfile, symbol_file_add, etc. */
-
-enum symfile_add_flags
- {
- /* Be chatty about what you are doing. */
- SYMFILE_VERBOSE = 1 << 1,
+extern struct compunit_symtab *allocate_compunit_symtab (struct objfile *,
+ const char *)
+ ATTRIBUTE_NONNULL (1);
- /* This is the main symbol file (as opposed to symbol file for dynamically
- loaded code). */
- SYMFILE_MAINLINE = 1 << 2,
+extern void add_compunit_symtab_to_objfile (struct compunit_symtab *cu);
- /* Do not call breakpoint_re_set when adding this symbol file. */
- SYMFILE_DEFER_BP_RESET = 1 << 3,
+extern void add_symtab_fns (enum bfd_flavour flavour, const struct sym_fns *);
- /* Do not immediately read symbols for this file. By default,
- symbols are read when the objfile is created. */
- SYMFILE_NO_READ = 1 << 4
- };
+extern void clear_symtab_users (symfile_add_flags add_flags);
-extern void syms_from_objfile (struct objfile *,
- struct section_addr_info *,
- struct section_offsets *, int, int);
+extern enum language deduce_language_from_filename (const char *);
-extern void new_symfile_objfile (struct objfile *, int);
+/* Map the filename extension EXT to the language LANG. Any previous
+ association of EXT will be removed. EXT will be copied by this
+ function. */
+extern void add_filename_language (const char *ext, enum language lang);
-extern struct objfile *symbol_file_add (char *, int,
- struct section_addr_info *, int);
+extern struct objfile *symbol_file_add (const char *, symfile_add_flags,
+ struct section_addr_info *, objfile_flags);
-extern struct objfile *symbol_file_add_from_bfd (bfd *, int,
+extern struct objfile *symbol_file_add_from_bfd (bfd *, const char *, symfile_add_flags,
struct section_addr_info *,
- int, struct objfile *parent);
+ objfile_flags, struct objfile *parent);
-extern void symbol_file_add_separate (bfd *, int, struct objfile *);
+extern void symbol_file_add_separate (bfd *, const char *, symfile_add_flags,
+ struct objfile *);
extern char *find_separate_debug_file_by_debuglink (struct objfile *);
extern void find_lowest_section (bfd *, asection *, void *);
-extern bfd *symfile_bfd_open (char *);
-
-extern bfd *gdb_bfd_open_maybe_remote (const char *);
+extern gdb_bfd_ref_ptr symfile_bfd_open (const char *);
extern int get_section_index (struct objfile *, char *);
+extern int print_symbol_loading_p (int from_tty, int mainline, int full);
+
/* Utility functions for overlay sections: */
extern enum overlay_debugging_state
{
extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *);
/* Load symbols from a file. */
-extern void symbol_file_add_main (char *args, int from_tty);
+extern void symbol_file_add_main (const char *args,
+ symfile_add_flags add_flags);
/* Clear GDB symbol tables. */
extern void symbol_file_clear (int from_tty);
bfd_byte *);
extern int symfile_map_offsets_to_segments (bfd *,
- struct symfile_segment_data *,
+ const struct symfile_segment_data *,
struct section_offsets *,
int, const CORE_ADDR *);
struct symfile_segment_data *get_symfile_segment_data (bfd *abfd);
extern struct cleanup *increment_reading_symtab (void);
+void expand_symtabs_matching
+ (gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,
+ gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher,
+ gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify,
+ enum search_domain kind);
+
+void map_symbol_filenames (symbol_filename_ftype *fun, void *data,
+ int need_fullname);
+
/* From dwarf2read.c */
/* Names for a dwarf2 debugging section. The field NORMAL is the normal
struct dwarf2_section_names abbrev;
struct dwarf2_section_names line;
struct dwarf2_section_names loc;
+ struct dwarf2_section_names loclists;
struct dwarf2_section_names macinfo;
struct dwarf2_section_names macro;
struct dwarf2_section_names str;
+ struct dwarf2_section_names line_str;
struct dwarf2_section_names ranges;
+ struct dwarf2_section_names rnglists;
struct dwarf2_section_names types;
struct dwarf2_section_names addr;
struct dwarf2_section_names frame;
extern void dwarf2_get_section_info (struct objfile *,
enum dwarf2_section_enum,
- asection **, gdb_byte **,
+ asection **, const gdb_byte **,
bfd_size_type *);
extern int dwarf2_initialize_objfile (struct objfile *);
/* From mdebugread.c */
-extern void mdebug_build_psymtabs (struct objfile *,
+extern void mdebug_build_psymtabs (minimal_symbol_reader &,
+ struct objfile *,
const struct ecoff_debug_swap *,
struct ecoff_debug_info *);
/* From minidebug.c. */
-extern bfd *find_separate_debug_file_in_section (struct objfile *);
+extern gdb_bfd_ref_ptr find_separate_debug_file_in_section (struct objfile *);
#endif /* !defined(SYMFILE_H) */