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/* Build symbol tables in GDB's internal format.
Copyright (C) 1986-2018 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (BUILDSYM_H)
#define BUILDSYM_H 1
struct objfile;
struct symbol;
struct addrmap;
struct compunit_symtab;
enum language;
/* This module provides definitions used for creating and adding to
the symbol table. These routines are called from various symbol-
file-reading routines.
They originated in dbxread.c of gdb-4.2, and were split out to
make xcoffread.c more maintainable by sharing code. */
struct block;
struct pending_block;
struct dynamic_prop;
/* The list of sub-source-files within the current individual
compilation. Each file gets its own symtab with its own linetable
and associated info, but they all share one blockvector. */
struct subfile
{
struct subfile *next;
/* Space for this is malloc'd. */
char *name;
/* Space for this is malloc'd. */
struct linetable *line_vector;
int line_vector_length;
/* The "containing" compunit. */
struct buildsym_compunit *buildsym_compunit;
enum language language;
struct symtab *symtab;
};
/* Record the symbols defined for each context in a list. We don't
create a struct block for the context until we know how long to
make it. */
#define PENDINGSIZE 100
struct pending
{
struct pending *next;
int nsyms;
struct symbol *symbol[PENDINGSIZE];
};
/* Stack representing unclosed lexical contexts (that will become
blocks, eventually). */
struct context_stack
{
/* Outer locals at the time we entered */
struct pending *locals;
/* Pending using directives at the time we entered. */
struct using_direct *local_using_directives;
/* Pointer into blocklist as of entry */
struct pending_block *old_blocks;
/* Name of function, if any, defining context */
struct symbol *name;
/* Expression that computes the frame base of the lexically enclosing
function, if any. NULL otherwise. */
struct dynamic_prop *static_link;
/* PC where this context starts */
CORE_ADDR start_addr;
/* Temp slot for exception handling. */
CORE_ADDR end_addr;
/* For error-checking matching push/pop */
int depth;
};
/* The type of the record_line function. */
typedef void (record_line_ftype) (struct subfile *subfile, int line,
CORE_ADDR pc);
extern void add_symbol_to_list (struct symbol *symbol,
struct pending **listhead);
extern struct symbol *find_symbol_in_list (struct pending *list,
char *name, int length);
extern struct block *finish_block (struct symbol *symbol,
struct pending_block *old_blocks,
const struct dynamic_prop *static_link,
CORE_ADDR start,
CORE_ADDR end);
extern void record_block_range (struct block *,
CORE_ADDR start, CORE_ADDR end_inclusive);
class scoped_free_pendings
{
public:
scoped_free_pendings () = default;
~scoped_free_pendings ();
DISABLE_COPY_AND_ASSIGN (scoped_free_pendings);
};
extern void start_subfile (const char *name);
extern void patch_subfile_names (struct subfile *subfile, const char *name);
extern void push_subfile ();
extern const char *pop_subfile ();
extern struct block *end_symtab_get_static_block (CORE_ADDR end_addr,
int expandable,
int required);
extern struct compunit_symtab *
end_symtab_from_static_block (struct block *static_block,
int section, int expandable);
extern struct compunit_symtab *end_symtab (CORE_ADDR end_addr, int section);
extern struct compunit_symtab *end_expandable_symtab (CORE_ADDR end_addr,
int section);
extern void augment_type_symtab (void);
extern struct context_stack *push_context (int desc, CORE_ADDR valu);
extern struct context_stack pop_context ();
extern record_line_ftype record_line;
extern struct compunit_symtab *start_symtab (struct objfile *objfile,
const char *name,
const char *comp_dir,
CORE_ADDR start_addr,
enum language language);
extern void restart_symtab (struct compunit_symtab *cust,
const char *name, CORE_ADDR start_addr);
/* Record the name of the debug format in the current pending symbol
table. FORMAT must be a string with a lifetime at least as long as
the symtab's objfile. */
extern void record_debugformat (const char *format);
/* Record the name of the debuginfo producer (usually the compiler) in
the current pending symbol table. PRODUCER must be a string with a
lifetime at least as long as the symtab's objfile. */
extern void record_producer (const char *producer);
/* Set the name of the last source file. NAME is copied by this
function. */
extern void set_last_source_file (const char *name);
/* Fetch the name of the last source file. */
extern const char *get_last_source_file (void);
/* Return the compunit symtab object.
It is only valid to call this between calls to start_symtab and the
end_symtab* functions. */
extern struct compunit_symtab *buildsym_compunit_symtab (void);
/* Return the macro table.
Initialize it if this is the first use.
It is only valid to call this between calls to start_symtab and the
end_symtab* functions. */
extern struct macro_table *get_macro_table (void);
/* Set the last source start address. Can only be used between
start_symtab and end_symtab* calls. */
extern void set_last_source_start_addr (CORE_ADDR addr);
/* Get the last source start address. Can only be used between
start_symtab and end_symtab* calls. */
extern CORE_ADDR get_last_source_start_addr ();
/* Return the local using directives. */
extern struct using_direct **get_local_using_directives ();
/* Set the list of local using directives. */
extern void set_local_using_directives (struct using_direct *new_local);
/* Return the global using directives. */
extern struct using_direct **get_global_using_directives ();
/* True if the context stack is empty. */
extern bool outermost_context_p ();
/* Return the top of the context stack, or nullptr if there is an
entry. */
extern struct context_stack *get_current_context_stack ();
/* Return the context stack depth. */
extern int get_context_stack_depth ();
/* Return the current subfile. */
extern struct subfile *get_current_subfile ();
/* Return the local symbol list. */
extern struct pending **get_local_symbols ();
/* Return the file symbol list. */
extern struct pending **get_file_symbols ();
/* Return the global symbol list. */
extern struct pending **get_global_symbols ();
#endif /* defined (BUILDSYM_H) */
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