Handle bitfield instructions in the prologue

Morello GCC seems to generate bitfield instructions in the prologue, which
throws Morello GDB's prologue analyzis off. Handle such instructions so we
can properly skip past the prologue.

diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index f80f59f42455aa463aae2fa189c89b262d12e5ab..993e719535efea4239f65d77873a02460867cfe7 100644 (file)
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -576,6 +576,10 @@ aarch64_analyze_prologue (struct gdbarch *gdbarch,
          /* Stop analysis on branch.  */
          break;
        }
+      else if (inst.opcode->iclass == bitfield)
+       {
+         /* Do nothing */
+       }
       else if (inst.opcode->op == OP_MOVZ
               || (inst.opcode->iclass == a64c
                   && strcmp (inst.opcode->name, "cpy") == 0))