1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/dwarf2asm.c b/gcc/dwarf2asm.c
index e9b18b8..2e108ac 100644
--- a/gcc/dwarf2asm.c
+++ b/gcc/dwarf2asm.c
@@ -967,7 +967,13 @@ dw2_output_indirect_constant_1 (const char *sym, tree id)
     }
 
   sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym);
+  /* Disable ASan for decl because redzones cause ABI breakage between GCC and
+     libstdc++ for `.LDFCM*' variables.  See PR 78651 for details.  */
+  unsigned int save_flag_sanitize = flag_sanitize;
+  flag_sanitize &= ~(SANITIZE_ADDRESS | SANITIZE_USER_ADDRESS
+		     | SANITIZE_KERNEL_ADDRESS);
   assemble_variable (decl, 1, 1, 1);
+  flag_sanitize = save_flag_sanitize;
   assemble_integer (sym_ref, POINTER_SIZE_UNITS, POINTER_SIZE, 1);
 
   return 0;