libgcc: Fix _Unwind_Find_FDE for missing unwind data with glibc 2.35

_dl_find_object returns success even if no unwind information has been
found, and dlfo_eh_frame is NULL.

libgcc/ChangeLog:

	PR libgcc/104207
	* unwind-dw2-fde-dip.c (_Unwind_Find_FDE): Add NULL check.

diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c
index 7de847c..3d6f39f 100644 (file)
--- a/libgcc/unwind-dw2-fde-dip.c
+++ b/libgcc/unwind-dw2-fde-dip.c
@@ -509,7 +509,7 @@ _Unwind_Find_FDE (void *pc, struct dwarf_eh_bases *bases)
 #ifdef DLFO_STRUCT_HAS_EH_DBASE
   {
     struct dl_find_object dlfo;
-    if (_dl_find_object (pc, &dlfo) == 0)
+    if (_dl_find_object (pc, &dlfo) == 0 && dlfo.dlfo_eh_frame != NULL)
       return find_fde_tail ((_Unwind_Ptr) pc, dlfo.dlfo_eh_frame,
 # if DLFO_STRUCT_HAS_EH_DBASE
                            (_Unwind_Ptr) dlfo.dlfo_eh_dbase,