/* Definitions for reading symbol files into GDB.
- Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2014 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"
/* Opaque declarations. */
struct target_section;
struct obj_section;
struct obstack;
struct block;
+struct probe;
+struct value;
+struct frame_info;
+struct agent_expr;
+struct axs_value;
/* Comparison function for symbol look ups. */
CORE_ADDR addr;
char *name;
- /* SECTINDEX must be valid for associated BFD if ADDR is not zero. */
+ /* SECTINDEX must be valid for associated BFD or set to -1. */
int sectindex;
} other[1];
};
int *segment_info;
};
+/* Callback for quick_symbol_functions->map_symbol_filenames. */
+
+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 int (expand_symtabs_file_matcher_ftype) (const char *filename,
+ void *data, int basenames);
+
+/* Callback for quick_symbol_functions->expand_symtabs_matching
+ to match a symbol name. */
+
+typedef int (expand_symtabs_symbol_matcher_ftype) (const char *name,
+ void *data);
+
/* 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,
/* Forget all cached full file names for OBJFILE. */
void (*forget_cached_source_info) (struct objfile *objfile);
- /* Look up the symbol table, in OBJFILE, of a source file named
- NAME. If there is no '/' in the name, 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 no such symbol table can be found, returns 0.
-
- Otherwise, sets *RESULT to the symbol table and returns 1. This
- might return 1 and set *RESULT to NULL if the requested file is
- an include file that does not have a symtab of its own. */
- int (*lookup_symtab) (struct objfile *objfile,
- const char *name,
- const char *full_path,
- const char *real_path,
- struct symtab **result);
+ /* 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, 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.
+ The result of this call is returned. */
+ int (*map_symtabs_matching_filename) (struct objfile *objfile,
+ const char *name,
+ const char *real_path,
+ int (*callback) (struct symtab *,
+ void *),
+ void *data);
/* Check to see if the symbol is defined in a "partial" symbol table
of OBJFILE. KIND should be either GLOBAL_BLOCK or STATIC_BLOCK,
indicates what sort of symbol to search for.
Returns the newly-expanded symbol table in which the symbol is
- defined, or NULL if no such symbol table exists. */
+ 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);
- /* This is called to expand symbol tables before looking up a
- symbol. A backend can choose to implement this and then have its
- `lookup_symbol' hook always return NULL, or the reverse. (It
- doesn't make sense to implement both.) The arguments are as for
- `lookup_symbol'. */
- void (*pre_expand_symtabs_matching) (struct objfile *objfile,
- enum block_enum block_kind,
- 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
"maint print statistics". */
/* 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);
-
- /* Return the file name of the file holding the 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);
+ void (*expand_symtabs_with_fullname) (struct objfile *objfile,
+ const char *fullname);
/* Find global or static symbols in all tables that are in NAMESPACE
and for which MATCH (symbol name, NAME) == 0, passing each to
- CALLBACK, reading in partial symbol symbol tables as needed. Look
+ CALLBACK, reading in partial symbol tables as needed. Look
through global symbols if GLOBAL and otherwise static symbols.
Passes NAME, NAMESPACE, and DATA to CALLBACK with each symbol
found. After each block is processed, passes NULL to CALLBACK.
- MATCH must be weaker than strcmp_iw in the sense that
- strcmp_iw(x,y) == 0 --> MATCH(x,y) == 0. ORDERED_COMPARE, if
- non-null, must be an ordering relation compatible with strcmp_iw
- in the sense that
- strcmp(x,y) == 0 --> ORDERED_COMPARE(x,y) == 0
+ MATCH must be weaker than strcmp_iw_ordered in the sense that
+ strcmp_iw_ordered(x,y) == 0 --> MATCH(x,y) == 0. ORDERED_COMPARE,
+ if non-null, must be an ordering relation compatible with
+ strcmp_iw_ordered in the sense that
+ strcmp_iw_ordered(x,y) == 0 --> ORDERED_COMPARE(x,y) == 0
and
- strcmp(x,y) <= 0 --> ORDERED_COMPARE(x,y) <= 0
- (allowing strcmp(x,y) < 0 while ORDERED_COMPARE(x, y) == 0).
+ strcmp_iw_ordered(x,y) <= 0 --> ORDERED_COMPARE(x,y) <= 0
+ (allowing strcmp_iw_ordered(x,y) < 0 while ORDERED_COMPARE(x, y) == 0).
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 namespace,
+ int global,
int (*callback) (struct block *,
struct symbol *, void *),
void *data,
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.
+ If BASENAMES is non-zero the function should consider only base name of
+ DATA (passed file name is already only the lbasename part).
Otherwise, if KIND does not match this symbol is skipped.
-
- If even KIND matches, then NAME_MATCHER is called for each symbol defined
- in the file. The symbol's "natural" name and DATA are passed to
- NAME_MATCHER.
- If NAME_MATCHER returns zero, then this symbol is skipped.
+ If even KIND matches, then SYMBOL_MATCHER is called for each symbol
+ defined in the file. The symbol "search" name and DATA are passed
+ to SYMBOL_MATCHER.
+
+ If SYMBOL_MATCHER returns zero, then this symbol is skipped.
Otherwise, this symbol's symbol table is expanded.
DATA is user data that is passed unmodified to the callback
functions. */
- 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);
+ void (*expand_symtabs_matching)
+ (struct objfile *objfile,
+ expand_symtabs_file_matcher_ftype *file_matcher,
+ expand_symtabs_symbol_matcher_ftype *symbol_matcher,
+ 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
symbol table that contains a symbol whose address is closest to
PC. */
struct symtab *(*find_pc_sect_symtab) (struct objfile *objfile,
- struct minimal_symbol *msymbol,
+ 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 name,
- the file's full name, and the DATA passed to this function. */
+ not already read in. FUN is the callback. It is passed the file's
+ FILENAME, the file's FULLNAME (if need_fullname is non-zero), and
+ the DATA passed to this function. */
void (*map_symbol_filenames) (struct objfile *objfile,
- void (*fun) (const char *, const char *,
- void *),
- void *data);
+ symbol_filename_ftype *fun, void *data,
+ int need_fullname);
};
-/* Structure to keep track of symbol reading functions for various
- object file types. */
+/* Structure of functions used for probe support. If one of these functions
+ is provided, all must be. */
-struct sym_fns
+struct sym_probe_fns
{
+ /* If non-NULL, return an array of probe objects.
- /* BFD flavour that we handle, or (as a special kludge, see
- xcoffread.c, (enum bfd_flavour)-1 for xcoff). */
+ The returned value does not have to be freed and it has lifetime of the
+ OBJFILE. */
+ VEC (probe_p) *(*sym_get_probes) (struct objfile *);
+};
- enum bfd_flavour sym_flavour;
+/* Structure to keep track of symbol reading functions for various
+ object file types. */
+struct sym_fns
+{
/* 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. */
void (*sym_read) (struct objfile *, int);
- /* Read the partial symbols for an objfile. This may be NULL, in
- which case gdb assumes that sym_read already read the partial
- symbols. This may only be non-NULL if the objfile actually does
- have debuginfo available. */
+ /* 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
+ only be non-NULL if the objfile actually does have debuginfo available.
+ */
void (*sym_read_psymbols) (struct objfile *);
probably be changed to a string, where NULL means the default,
and others are parsed in a file dependent way. */
- 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
bfd_byte *(*sym_relocate) (struct objfile *, asection *sectp, bfd_byte *buf);
+ /* If non-NULL, this objfile has probe support, and all the probe
+ functions referred to here will be non-NULL. */
+ const struct sym_probe_fns *sym_probe_fns;
+
/* The "quick" (aka partial) symbol functions for this symbol
reader. */
const struct quick_symbol_functions *qf;
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 (const char *, struct objfile *)
+ ATTRIBUTE_NONNULL (1);
-extern void add_symtab_fns (const struct sym_fns *);
+extern void add_symtab_fns (enum bfd_flavour flavour, const struct sym_fns *);
/* This enum encodes bit-flags passed as ADD_FLAGS parameter to
- syms_from_objfile, symbol_file_add, etc. */
+ symbol_file_add, etc. */
enum symfile_add_flags
{
SYMFILE_NO_READ = 1 << 4
};
-extern void syms_from_objfile (struct objfile *,
- struct section_addr_info *,
- struct section_offsets *, int, int);
-
extern void new_symfile_objfile (struct objfile *, int);
-extern struct objfile *symbol_file_add (char *, int,
+extern struct objfile *symbol_file_add (const char *, int,
struct section_addr_info *, int);
-extern struct objfile *symbol_file_add_from_bfd (bfd *, int,
+extern struct objfile *symbol_file_add_from_bfd (bfd *, const char *, int,
struct section_addr_info *,
int, struct objfile *parent);
-extern void symbol_file_add_separate (bfd *, int, struct objfile *);
+extern void symbol_file_add_separate (bfd *, const char *, int,
+ struct objfile *);
extern char *find_separate_debug_file_by_debuglink (struct objfile *);
extern void free_section_addr_info (struct section_addr_info *);
-/* Make a copy of the string at PTR with SIZE characters in the symbol
- obstack (and add a null character at the end in the copy). Returns
- the address of the copy. */
-
-extern char *obsavestring (const char *, int, struct obstack *);
-
-/* Concatenate NULL terminated variable argument list of `const char
- *' strings; return the new string. Space is found in the OBSTACKP.
- Argument list must be terminated by a sentinel expression `(char *)
- NULL'. */
-
-extern char *obconcat (struct obstack *obstackp, ...) ATTRIBUTE_SENTINEL;
-
/* Variables */
/* If non-zero, shared library symbols will be added automatically
extern void find_lowest_section (bfd *, asection *, void *);
-extern bfd *symfile_bfd_open (char *);
+extern bfd *symfile_bfd_open (const char *);
-extern bfd *bfd_open_maybe_remote (const char *);
+extern bfd *gdb_bfd_open_maybe_remote (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, int from_tty);
/* 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 (expand_symtabs_file_matcher_ftype *,
+ expand_symtabs_symbol_matcher_ftype *,
+ enum search_domain kind, void *data);
+
+void map_symbol_filenames (symbol_filename_ftype *fun, void *data,
+ int need_fullname);
+
/* From dwarf2read.c */
-extern int dwarf2_has_info (struct objfile *);
+/* Names for a dwarf2 debugging section. The field NORMAL is the normal
+ section name (usually from the DWARF standard), while the field COMPRESSED
+ is the name of compressed sections. If your object file format doesn't
+ support compressed sections, the field COMPRESSED can be NULL. Likewise,
+ the debugging section is not supported, the field NORMAL can be NULL too.
+ It doesn't make sense to have a NULL NORMAL field but a non-NULL COMPRESSED
+ field. */
+
+struct dwarf2_section_names {
+ const char *normal;
+ const char *compressed;
+};
+
+/* List of names for dward2 debugging sections. Also most object file formats
+ use the standardized (ie ELF) names, some (eg XCOFF) have customized names
+ due to restrictions.
+ The table for the standard names is defined in dwarf2read.c. Please
+ update all instances of dwarf2_debug_sections if you add a field to this
+ structure. It is always safe to use { NULL, NULL } in this case. */
+
+struct dwarf2_debug_sections {
+ struct dwarf2_section_names info;
+ struct dwarf2_section_names abbrev;
+ struct dwarf2_section_names line;
+ struct dwarf2_section_names loc;
+ struct dwarf2_section_names macinfo;
+ struct dwarf2_section_names macro;
+ struct dwarf2_section_names str;
+ struct dwarf2_section_names ranges;
+ struct dwarf2_section_names types;
+ struct dwarf2_section_names addr;
+ struct dwarf2_section_names frame;
+ struct dwarf2_section_names eh_frame;
+ struct dwarf2_section_names gdb_index;
+ /* This field has no meaning, but exists solely to catch changes to
+ this structure which are not reflected in some instance. */
+ int sentinel;
+};
+
+extern int dwarf2_has_info (struct objfile *,
+ const struct dwarf2_debug_sections *);
+
+/* Dwarf2 sections that can be accessed by dwarf2_get_section_info. */
+enum dwarf2_section_enum {
+ DWARF2_DEBUG_FRAME,
+ DWARF2_EH_FRAME
+};
+
+extern void dwarf2_get_section_info (struct objfile *,
+ enum dwarf2_section_enum,
+ asection **, const gdb_byte **,
+ bfd_size_type *);
extern int dwarf2_initialize_objfile (struct objfile *);
extern void dwarf2_build_psymtabs (struct objfile *);
/* From mdebugread.c */
-/* Hack to force structures to exist before use in parameter list. */
-struct ecoff_debug_hack
-{
- struct ecoff_debug_swap *a;
- struct ecoff_debug_info *b;
-};
-
extern void mdebug_build_psymtabs (struct objfile *,
const struct ecoff_debug_swap *,
struct ecoff_debug_info *);
const struct ecoff_debug_swap *,
asection *);
+/* From minidebug.c. */
+
+extern bfd *find_separate_debug_file_in_section (struct objfile *);
+
#endif /* !defined(SYMFILE_H) */
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