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Remove free_cached_comp_units cleanups 

This changes free_cached_comp_units from a cleanup function to an RAII
class.

gdb/ChangeLog
2018-03-30  Tom Tromey  <tom@tromey.com>

	* dwarf2read.c (class free_cached_comp_units): New class.
	(dw2_instantiate_symtab, dwarf2_build_psymtabs_hard): Use it.
	(free_cached_comp_units): Remove function.
This commit is contained in:
Tom Tromey 2018-03-28 15:04:30 -06:00
parent 9ae79dac31
commit 11ed8cada6
2 changed files with 32 additions and 20 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2018-03-30 Tom Tromey <tom@tromey.com>
* dwarf2read.c (class free_cached_comp_units): New class.
(dw2_instantiate_symtab, dwarf2_build_psymtabs_hard): Use it.
(free_cached_comp_units): Remove function.
2018-03-30 Tom Tromey <tom@tromey.com>
* utils.h (make_cleanup_unpush_target): Remove.

46
gdb/dwarf2read.c
View File

@ -1821,8 +1821,6 @@ static void prepare_one_comp_unit (struct dwarf2_cu *cu,
struct die_info *comp_unit_die,
enum language pretend_language);
static void free_cached_comp_units (void *);
static void age_cached_comp_units (struct dwarf2_per_objfile *dwarf2_per_objfile);
static void free_one_cached_comp_unit (struct dwarf2_per_cu_data *);
@ -2172,6 +2170,30 @@ dwarf2_per_objfile::free_cached_comp_units ()
}
}
/* A helper class that calls free_cached_comp_units on
destruction. */
class free_cached_comp_units
{
public:
explicit free_cached_comp_units (dwarf2_per_objfile *per_objfile)
: m_per_objfile (per_objfile)
{
}
~free_cached_comp_units ()
{
m_per_objfile->free_cached_comp_units ();
}
DISABLE_COPY_AND_ASSIGN (free_cached_comp_units);
private:
dwarf2_per_objfile *m_per_objfile;
};
/* Try to locate the sections we need for DWARF 2 debugging
information and return true if we have enough to do something.
NAMES points to the dwarf2 section names, or is NULL if the standard
@ -2876,12 +2898,10 @@ dw2_instantiate_symtab (struct dwarf2_per_cu_data *per_cu)
gdb_assert (dwarf2_per_objfile->using_index);
if (!per_cu->v.quick->compunit_symtab)
{
struct cleanup *back_to = make_cleanup (free_cached_comp_units,
dwarf2_per_objfile);
free_cached_comp_units freer (dwarf2_per_objfile);
scoped_restore decrementer = increment_reading_symtab ();
dw2_do_instantiate_symtab (per_cu);
process_cu_includes (dwarf2_per_objfile);
do_cleanups (back_to);
}
return per_cu->v.quick->compunit_symtab;
@ -8434,7 +8454,6 @@ set_partial_user (struct dwarf2_per_objfile *dwarf2_per_objfile)
static void
dwarf2_build_psymtabs_hard (struct dwarf2_per_objfile *dwarf2_per_objfile)
{
struct cleanup *back_to;
int i;
struct objfile *objfile = dwarf2_per_objfile->objfile;
@ -8450,7 +8469,7 @@ dwarf2_build_psymtabs_hard (struct dwarf2_per_objfile *dwarf2_per_objfile)
/* Any cached compilation units will be linked by the per-objfile
read_in_chain. Make sure to free them when we're done. */
back_to = make_cleanup (free_cached_comp_units, dwarf2_per_objfile);
free_cached_comp_units freer (dwarf2_per_objfile);
build_type_psymtabs (dwarf2_per_objfile);
@ -8491,8 +8510,6 @@ dwarf2_build_psymtabs_hard (struct dwarf2_per_objfile *dwarf2_per_objfile)
/* At this point we want to keep the address map. */
save_psymtabs_addrmap.release ();
do_cleanups (back_to);
if (dwarf_read_debug)
fprintf_unfiltered (gdb_stdlog, "Done building psymtabs of %s\n",
objfile_name (objfile));
@ -25072,17 +25089,6 @@ prepare_one_comp_unit (struct dwarf2_cu *cu, struct die_info *comp_unit_die,
cu->producer = dwarf2_string_attr (comp_unit_die, DW_AT_producer, cu);
}
/* Free all cached compilation units. */
static void
free_cached_comp_units (void *data)
{
struct dwarf2_per_objfile *dwarf2_per_objfile
= (struct dwarf2_per_objfile *) data;
dwarf2_per_objfile->free_cached_comp_units ();
}
/* Increase the age counter on each cached compilation unit, and free
any that are too old. */