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Remove clear_symtab_users_cleanup

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This removes clear_symtab_users_cleanup, replacing it with uses of
forward_scope_exit.

gdb/ChangeLog:
2019-01-23  Tom Tromey  <tom@tromey.com>
	    Pedro Alves  <palves@redhat.com>

	* symfile.c: Include forward-scope-exit.h.
	(clear_symtab_users_cleanup): Replace forward declaration with
	a FORWARD_SCOPE_EXIT.
	(syms_from_objfile_1): Use the forward_scope_exit and
	gdb::optional instead of cleanup_function.
	(reread_symbols): Use the forward_scope_exit instead of
	cleanup_function.
	(clear_symtab_users_cleanup): Remove function.
This commit is contained in:
Tom Tromey
2019-01-23 18:58:34 +00:00
committed by Pedro Alves
parent 1db93f14fa
commit 286526c1e5
2 changed files with 22 additions and 14 deletions
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12
gdb/ChangeLog
View File

@ -1,3 +1,15 @@
2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com>
* symfile.c: Include forward-scope-exit.h.
(clear_symtab_users_cleanup): Replace forward declaration with
a FORWARD_SCOPE_EXIT.
(syms_from_objfile_1): Use the forward_scope_exit and
gdb::optional instead of cleanup_function.
(reread_symbols): Use the forward_scope_exit instead of
cleanup_function.
(clear_symtab_users_cleanup): Remove function.
2019-01-23 Tom Tromey <tom@tromey.com> 2019-01-23 Tom Tromey <tom@tromey.com>
Pedro Alves <palves@redhat.com> Pedro Alves <palves@redhat.com>

24
gdb/symfile.c
View File

@ -59,6 +59,7 @@
#include "common/byte-vector.h" #include "common/byte-vector.h"
#include "selftest.h" #include "selftest.h"
#include "cli/cli-style.h" #include "cli/cli-style.h"
#include "common/forward-scope-exit.h"
#include <sys/types.h> #include <sys/types.h>
#include <fcntl.h> #include <fcntl.h>
@ -79,7 +80,8 @@ void (*deprecated_show_load_progress) (const char *section,
void (*deprecated_pre_add_symbol_hook) (const char *); void (*deprecated_pre_add_symbol_hook) (const char *);
void (*deprecated_post_add_symbol_hook) (void); void (*deprecated_post_add_symbol_hook) (void);
static void clear_symtab_users_cleanup (void *ignore); using clear_symtab_users_cleanup
= FORWARD_SCOPE_EXIT (clear_symtab_users);
/* Global variables owned by this file. */ /* Global variables owned by this file. */
int readnow_symbol_files; /* Read full symbols immediately. */ int readnow_symbol_files; /* Read full symbols immediately. */
@ -923,7 +925,6 @@ syms_from_objfile_1 (struct objfile *objfile,
symfile_add_flags add_flags) symfile_add_flags add_flags)
{ {
section_addr_info local_addr; section_addr_info local_addr;
struct cleanup *old_chain;
const int mainline = add_flags & SYMFILE_MAINLINE; const int mainline = add_flags & SYMFILE_MAINLINE;
objfile_set_sym_fns (objfile, find_sym_fns (objfile->obfd)); objfile_set_sym_fns (objfile, find_sym_fns (objfile->obfd));
@ -945,7 +946,8 @@ syms_from_objfile_1 (struct objfile *objfile,
/* Make sure that partially constructed symbol tables will be cleaned up /* Make sure that partially constructed symbol tables will be cleaned up
if an error occurs during symbol reading. */ if an error occurs during symbol reading. */
old_chain = make_cleanup (null_cleanup, NULL); gdb::optional<clear_symtab_users_cleanup> defer_clear_users;
std::unique_ptr<struct objfile> objfile_holder (objfile); std::unique_ptr<struct objfile> objfile_holder (objfile);
/* If ADDRS is NULL, put together a dummy address list. /* If ADDRS is NULL, put together a dummy address list.
@ -958,7 +960,7 @@ syms_from_objfile_1 (struct objfile *objfile,
{ {
/* We will modify the main symbol table, make sure that all its users /* We will modify the main symbol table, make sure that all its users
will be cleaned up if an error occurs during symbol reading. */ will be cleaned up if an error occurs during symbol reading. */
make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/); defer_clear_users.emplace ((symfile_add_flag) 0);
/* Since no error yet, throw away the old symbol table. */ /* Since no error yet, throw away the old symbol table. */
@ -999,7 +1001,8 @@ syms_from_objfile_1 (struct objfile *objfile,
/* Discard cleanups as symbol reading was successful. */ /* Discard cleanups as symbol reading was successful. */
objfile_holder.release (); objfile_holder.release ();
discard_cleanups (old_chain); if (defer_clear_users)
defer_clear_users->release ();
} }
/* Same as syms_from_objfile_1, but also initializes the objfile /* Same as syms_from_objfile_1, but also initializes the objfile
@ -2441,7 +2444,6 @@ reread_symbols (void)
new_modtime = new_statbuf.st_mtime; new_modtime = new_statbuf.st_mtime;
if (new_modtime != objfile->mtime) if (new_modtime != objfile->mtime)
{ {
struct cleanup *old_cleanups;
struct section_offsets *offsets; struct section_offsets *offsets;
int num_offsets; int num_offsets;
@ -2461,7 +2463,7 @@ reread_symbols (void)
std::unique_ptr<struct objfile> objfile_holder (objfile); std::unique_ptr<struct objfile> objfile_holder (objfile);
/* We need to do this whenever any symbols go away. */ /* We need to do this whenever any symbols go away. */
old_cleanups = make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/); clear_symtab_users_cleanup defer_clear_users (0);
if (exec_bfd != NULL if (exec_bfd != NULL
&& filename_cmp (bfd_get_filename (objfile->obfd), && filename_cmp (bfd_get_filename (objfile->obfd),
@ -2615,7 +2617,7 @@ reread_symbols (void)
/* Discard cleanups as symbol reading was successful. */ /* Discard cleanups as symbol reading was successful. */
objfile_holder.release (); objfile_holder.release ();
discard_cleanups (old_cleanups); defer_clear_users.release ();
/* If the mtime has changed between the time we set new_modtime /* If the mtime has changed between the time we set new_modtime
and now, we *want* this to be out of date, so don't call stat and now, we *want* this to be out of date, so don't call stat
@ -2892,12 +2894,6 @@ clear_symtab_users (symfile_add_flags add_flags)
if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0) if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
breakpoint_re_set (); breakpoint_re_set ();
} }
static void
clear_symtab_users_cleanup (void *ignore)
{
clear_symtab_users (0);
}
/* OVERLAYS: /* OVERLAYS:
The following code implements an abstraction for debugging overlay sections. The following code implements an abstraction for debugging overlay sections.