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 4f65b2b6b05dbbb51a798b27711166f8978aaab9..a7609b3c1c59c266b7206012ccc80de7136814f4 100644 (file)
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -579,6 +579,10 @@ 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))