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* solib.c (solib_used): New function. 

(update_solib_list, reload_shared_libraries_1): Check if objfile is used
    by another so_list object before freeing it.
This commit is contained in:
Aleksandar Ristovski 2011-09-12 19:00:22 +00:00
parent 7b5b197e80
commit 59145f8cfb
2 changed files with 24 additions and 2 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2011-09-01 Aleksandar Ristovski <aristovski@qnx.com>
* solib.c (used): New function.
(update_solib_list, reload_shared_libraries_1): Check if objfile is used
by another so_list object before freeing it.
2011-09-11 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup.

20
gdb/solib.c
View File

@ -633,6 +633,20 @@ solib_read_symbols (struct so_list *so, int flags)
return 0;
}
/* Return 1 if KNOWN->objfile is used by any other so_list object in the
SO_LIST_HEAD list. Return 0 otherwise. */
static int
solib_used (const struct so_list *const known)
{
const struct so_list *pivot;
for (pivot = so_list_head; pivot != NULL; pivot = pivot->next)
if (pivot != known && pivot->objfile == known->objfile)
return 1;
return 0;
}
/* Synchronize GDB's shared object list with inferior's.
Extract the list of currently loaded shared objects from the
@ -749,7 +763,8 @@ update_solib_list (int from_tty, struct target_ops *target)
*gdb_link = gdb->next;
/* Unless the user loaded it explicitly, free SO's objfile. */
if (gdb->objfile && ! (gdb->objfile->flags & OBJF_USERLOADED))
if (gdb->objfile && ! (gdb->objfile->flags & OBJF_USERLOADED)
&& !solib_used (gdb))
free_objfile (gdb->objfile);
/* Some targets' section tables might be referring to
@ -1225,7 +1240,8 @@ reload_shared_libraries_1 (int from_tty)
|| (found_pathname != NULL
&& filename_cmp (found_pathname, so->so_name) != 0))
{
if (so->objfile && ! (so->objfile->flags & OBJF_USERLOADED))
if (so->objfile && ! (so->objfile->flags & OBJF_USERLOADED)
&& !solib_used (so))
free_objfile (so->objfile);
remove_target_sections (so->abfd);
free_so_symbols (so);