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Free bfds on the file_chain at linker exit.

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This commit is contained in:
Nick Clifton 2026-02-04 11:37:25 +00:00
parent 2433c1cbac
commit 52fdc0531e
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3 changed files with 36 additions and 6 deletions
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31
ld/ldlang.c
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@ -1427,6 +1427,37 @@ lang_finish (void)
ldfile_free ();
}
/* Called by ld_cleanup() at linker exit. Frees any remaining memory used by
ldlang.c in order to pacify memory leak checkers. */
void
lang_cleanup (void)
{
lang_input_statement_type *search;
/* FIXME: Walking the file_chain list closes most of the open bfds but not
all of them. We should find and close the others as well.
Note: the bfds closed here can also be found on the input_file_chain and
link_info.input_bfd lists. A bfd can only be closed once however, so we
must not walk those other lists. */
for (search = (void *) file_chain.head;
search != NULL;
search = search->next_real_file)
{
if (search->the_bfd == NULL)
continue;
bfd_close_all_done (search->the_bfd);
search->the_bfd = NULL;
}
stat_free (NULL);
obstack_free (&pt_obstack, NULL);
}
/*----------------------------------------------------------------------
A region is an area of memory declared with the
MEMORY { name:org=exp, len=exp ... }

2
ld/ldlang.h
View file

@ -546,6 +546,8 @@ extern void lang_init
(bool);
extern void lang_finish
(void);
extern void lang_cleanup
(void);
extern lang_memory_region_type * lang_memory_region_lookup
(const char * const, bool);
extern void lang_memory_region_alias

9
ld/ldmain.c
View file

@ -222,14 +222,11 @@ write_dependency_file (void)
static void
ld_cleanup (void)
{
bfd *ibfd, *inext;
if (link_info.output_bfd)
bfd_close_all_done (link_info.output_bfd);
for (ibfd = link_info.input_bfds; ibfd; ibfd = inext)
{
inext = ibfd->link.next;
bfd_close_all_done (ibfd);
}
lang_cleanup ();
/* Note - we do not call ld_plugin_start (PHASE_PLUGINS) here as this
function is only called when the linker is exiting - ie after any
stats may have been reported, and potentially in the middle of a