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author | Thomas Neumann <tneumann@users.sourceforge.net> | 2023-05-02 16:21:09 +0200 |
---|---|---|
committer | Thomas Neumann <tneumann@users.sourceforge.net> | 2023-06-03 09:45:43 +0200 |
commit | 5cf60b6ba111f4169305c7832b063b000e9ec36a (patch) | |
tree | 4ae5b9dbd54c843210de7474541806b30fb87dea | |
parent | f5c82bff5ef2930583eccc008cf73653720987b5 (diff) |
release the sorted FDE array when deregistering a frame [PR109685]
The atomic fastpath bypasses the code that releases the sort
array which was lazily allocated during unwinding. We now
check after deregistering if there is an array to free.
libgcc/ChangeLog:
PR libgcc/109685
* unwind-dw2-fde.c: Free sort array in atomic fast path.
-rw-r--r-- | libgcc/unwind-dw2-fde.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libgcc/unwind-dw2-fde.c b/libgcc/unwind-dw2-fde.c index a5786bf729c..32b9e64a1c8 100644 --- a/libgcc/unwind-dw2-fde.c +++ b/libgcc/unwind-dw2-fde.c @@ -241,6 +241,12 @@ __deregister_frame_info_bases (const void *begin) // And remove ob = btree_remove (®istered_frames, range[0]); bool empty_table = (range[1] - range[0]) == 0; + + // Deallocate the sort array if any. + if (ob && ob->s.b.sorted) + { + free (ob->u.sort); + } #else init_object_mutex_once (); __gthread_mutex_lock (&object_mutex); |