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Change increment_reading_symtab to return a scoped_restore 

This changes increment_reading_symtab to return a scoped_restore, then
fixes up the users.

gdb/ChangeLog
2017-04-12  Tom Tromey  <tom@tromey.com>

	* symfile.h (increment_reading_symtab): Update type.
	* symfile.c (decrement_reading_symtab): Remove.
	(increment_reading_symtab): Return a scoped_restore_tmpl<int>.
	* psymtab.c (psymtab_to_symtab): Update.
	* dwarf2read.c (dw2_instantiate_symtab): Update.
This commit is contained in:
Tom Tromey 2017-04-06 20:27:10 -06:00
parent 0e8621a0be
commit c83dd86726
5 changed files with 15 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2017-04-12 Tom Tromey <tom@tromey.com>
* symfile.h (increment_reading_symtab): Update type.
* symfile.c (decrement_reading_symtab): Remove.
(increment_reading_symtab): Return a scoped_restore_tmpl<int>.
* psymtab.c (psymtab_to_symtab): Update.
* dwarf2read.c (dw2_instantiate_symtab): Update.
2017-04-12 Tom Tromey <tom@tromey.com>
* jit.c (struct jit_reader): Declare separately. Add constructor

2
gdb/dwarf2read.c
View File

@ -2885,7 +2885,7 @@ dw2_instantiate_symtab (struct dwarf2_per_cu_data *per_cu)
if (!per_cu->v.quick->compunit_symtab)
{
struct cleanup *back_to = make_cleanup (free_cached_comp_units, NULL);
increment_reading_symtab ();
scoped_restore decrementer = increment_reading_symtab ();
dw2_do_instantiate_symtab (per_cu);
process_cu_includes ();
do_cleanups (back_to);

3
gdb/psymtab.c
View File

@ -770,10 +770,9 @@ psymtab_to_symtab (struct objfile *objfile, struct partial_symtab *pst)
/* If it has not yet been read in, read it. */
if (!pst->readin)
{
struct cleanup *back_to = increment_reading_symtab ();
scoped_restore decrementer = increment_reading_symtab ();
(*pst->read_symtab) (pst, objfile);
do_cleanups (back_to);
}
return pst->compunit_symtab;

17
gdb/symfile.c
View File

@ -91,8 +91,6 @@ static void add_symbol_file_command (char *, int);
static const struct sym_fns *find_sym_fns (bfd *);
static void decrement_reading_symtab (void *);
static void overlay_invalidate_all (void);
static void overlay_auto_command (char *, int);
@ -193,22 +191,15 @@ print_symbol_loading_p (int from_tty, int exec, int full)
int currently_reading_symtab = 0;
static void
decrement_reading_symtab (void *dummy)
{
currently_reading_symtab--;
gdb_assert (currently_reading_symtab >= 0);
}
/* Increment currently_reading_symtab and return a cleanup that can be
used to decrement it. */
struct cleanup *
scoped_restore_tmpl<int>
increment_reading_symtab (void)
{
++currently_reading_symtab;
gdb_assert (currently_reading_symtab > 0);
return make_cleanup (decrement_reading_symtab, NULL);
gdb_assert (currently_reading_symtab >= 0);
return make_scoped_restore (&currently_reading_symtab,
currently_reading_symtab + 1);
}
/* Remember the lowest-addressed loadable section we've seen.

2
gdb/symfile.h
View File

@ -556,7 +556,7 @@ extern int symfile_map_offsets_to_segments (bfd *,
struct symfile_segment_data *get_symfile_segment_data (bfd *abfd);
void free_symfile_segment_data (struct symfile_segment_data *data);
extern struct cleanup *increment_reading_symtab (void);
extern scoped_restore_tmpl<int> increment_reading_symtab (void);
void expand_symtabs_matching
(gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,