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Make objfile::static_links an htab_up 

This changes objfile::static_links to be an htab_up, so that ~objfile
no longer has to explicitly destroy it.

Tested by the buildbot.

gdb/ChangeLog
2019-04-19  Tom Tromey  <tom@tromey.com>

	* symfile.c (reread_symbols): Update.
	* objfiles.c (objfile_register_static_link)
	(objfile_lookup_static_link): Update
	(~objfile) Don't delete static_links.
	* objfiles.h (struct objfile) <static_links>: Now an htab_up.
This commit is contained in:
Tom Tromey 2019-04-07 15:39:37 -06:00
parent 61f4b35041
commit cf250e3679
4 changed files with 15 additions and 13 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2019-04-19 Tom Tromey <tom@tromey.com>
* symfile.c (reread_symbols): Update.
* objfiles.c (objfile_register_static_link)
(objfile_lookup_static_link): Update
(~objfile) Don't delete static_links.
* objfiles.h (struct objfile) <static_links>: Now an htab_up.
2019-04-19 Tom Tromey <tom@tromey.com>
* type-stack.h (struct type_stack) <insert>: Constify string.

16
gdb/objfiles.c
View File

@ -231,14 +231,14 @@ objfile_register_static_link (struct objfile *objfile,
struct static_link_htab_entry *entry;
if (objfile->static_links == NULL)
objfile->static_links = htab_create_alloc
objfile->static_links.reset (htab_create_alloc
(1, &static_link_htab_entry_hash, static_link_htab_entry_eq, NULL,
xcalloc, xfree);
xcalloc, xfree));
/* Create a slot for the mapping, make sure it's the first mapping for this
block and then create the mapping itself. */
lookup_entry.block = block;
slot = htab_find_slot (objfile->static_links, &lookup_entry, INSERT);
slot = htab_find_slot (objfile->static_links.get (), &lookup_entry, INSERT);
gdb_assert (*slot == NULL);
entry = XOBNEW (&objfile->objfile_obstack, static_link_htab_entry);
@ -260,9 +260,8 @@ objfile_lookup_static_link (struct objfile *objfile,
if (objfile->static_links == NULL)
return NULL;
lookup_entry.block = block;
entry
= (struct static_link_htab_entry *) htab_find (objfile->static_links,
&lookup_entry);
entry = ((struct static_link_htab_entry *)
htab_find (objfile->static_links.get (), &lookup_entry));
if (entry == NULL)
return NULL;
@ -691,11 +690,6 @@ objfile::~objfile ()
/* Rebuild section map next time we need it. */
get_objfile_pspace_data (pspace)->section_map_dirty = 1;
/* Free the map for static links. There's no need to free static link
themselves since they were allocated on the objstack. */
if (static_links != NULL)
htab_delete (static_links);
}
/* Free all the object files at once and clean up their users. */

2
gdb/objfiles.h
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@ -615,7 +615,7 @@ struct objfile
Very few blocks have a static link, so it's more memory efficient to
store these here rather than in struct block. Static links must be
allocated on the objfile's obstack. */
htab_t static_links {};
htab_up static_links;
};
/* Declarations for functions defined in objfiles.c */

2
gdb/symfile.c
View File

@ -2549,7 +2549,7 @@ reread_symbols (void)
objfile->sections = NULL;
objfile->compunit_symtabs = NULL;
objfile->template_symbols = NULL;
objfile->static_links = NULL;
objfile->static_links.reset (nullptr);
/* obstack_init also initializes the obstack so it is
empty. We could use obstack_specify_allocation but