Introduce buildsym-legacy.h

This introduces a new header, buildsym-legacy.h, and changes all the
symbol readers to use it.  The idea is to put the function-based
interface, that relies on the buildsym_compunit global, into a
separate header.  Then when a symbol reader is updated to use the new
interface, it can simply not include buildsym-legacy.h, so it's easy
to be sure that the new API is used everywhere.

gdb/ChangeLog
2018-07-20  Tom Tromey  <tom@tromey.com>

	* xcoffread.c: Include buildsym-legacy.h.
	* windows-nat.c: Include buildsym-legacy.h.
	* stabsread.c: Include buildsym-legacy.h.
	* mdebugread.c: Include buildsym-legacy.h.
	* buildsym-legacy.h: New file.
	* buildsym-legacy.c: New file, from buildsym.c.
	* go32-nat.c: Include buildsym-legacy.h.
	* dwarf2read.c: Include buildsym-legacy.h.
	* dbxread.c: Include buildsym-legacy.h.
	* cp-namespace.c: Include buildsym-legacy.h.
	* coffread.c: Include buildsym-legacy.h.
	* buildsym.h: Move some contents to buildsym-legacy.h.
	* buildsym.c: Include buildsym-legacy.h.  Move many functions to
	buildsym-legacy.c.
	* Makefile.in (HFILES_NO_SRCDIR): Add buildsym-legacy.h.

1 files changed, 0 insertions, 142 deletions

diff --git a/gdb/buildsym.h b/gdb/buildsym.h
index 49086d33f55..36b3e99dc56 100644
--- a/gdb/buildsym.h
+++ b/gdb/buildsym.h
@@ -408,146 +408,4 @@ extern void add_symbol_to_list (struct symbol *symbol,
 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) */