* unwind-dw2-fde-glibc.c (_Unwind_IteratePhdrCallback): Guard
against prev_cache_entry == NULL when moving a cache entry to the
head of the list.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108582
138bc75d-0d04-0410-961f-
82ee72b054a4
+2005-12-15 Andrew Haley <aph@redhat.com>
+
+ * unwind-dw2-fde-glibc.c (_Unwind_IteratePhdrCallback): Guard
+ against prev_cache_entry == NULL when moving a cache entry to the
+ head of the list.
+
2005-12-15 Nathan Sidwell <nathan@codesourcery.com>
* config/mt/mt.c (mt_override_options): Require lower case
if (size >= sizeof (struct ext_dl_phdr_info))
{
- if (last_cache_entry != NULL)
+ /* Move the cache entry we're about to overwrite to the head of
+ the list. If either last_cache_entry or prev_cache_entry are
+ NULL, that cache entry is already at the head. */
+ if (last_cache_entry != NULL && prev_cache_entry != NULL)
{
prev_cache_entry->link = last_cache_entry->link;
last_cache_entry->link = frame_hdr_cache_head;