+/* Dump out the mn10300 speciic architecture information. */
+
+static void
+mn10300_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ fprintf_unfiltered (file, "mn10300_dump_tdep: am33_mode = %d\n",
+ tdep->am33_mode);
+}
+
+static struct gdbarch *
+mn10300_gdbarch_init (struct gdbarch_info info,
+ struct gdbarch_list *arches)
+{
+ static LONGEST mn10300_call_dummy_words[] = { 0 };
+ struct gdbarch *gdbarch;
+ struct gdbarch_tdep *tdep = NULL;
+ int am33_mode;
+ gdbarch_register_name_ftype *register_name;
+ int mach;
+ int num_regs;
+
+ arches = gdbarch_list_lookup_by_info (arches, &info);
+ if (arches != NULL)
+ return arches->gdbarch;
+ tdep = xmalloc (sizeof (struct gdbarch_tdep));
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ if (info.bfd_arch_info != NULL
+ && info.bfd_arch_info->arch == bfd_arch_mn10300)
+ mach = info.bfd_arch_info->mach;
+ else
+ mach = 0;
+ switch (mach)
+ {
+ case 0:
+ case bfd_mach_mn10300:
+ am33_mode = 0;
+ register_name = mn10300_generic_register_name;
+ num_regs = 32;
+ break;
+ case bfd_mach_am33:
+ am33_mode = 1;
+ register_name = am33_register_name;
+ num_regs = 32;
+ break;
+ default:
+ internal_error (__FILE__, __LINE__,
+ "mn10300_gdbarch_init: Unknown mn10300 variant");
+ return NULL; /* keep GCC happy. */
+ }
+
+ /* Registers. */
+ set_gdbarch_num_regs (gdbarch, num_regs);
+ set_gdbarch_register_name (gdbarch, register_name);
+ set_gdbarch_register_size (gdbarch, 4);
+ set_gdbarch_register_bytes (gdbarch,
+ num_regs * gdbarch_register_size (gdbarch));
+ set_gdbarch_max_register_raw_size (gdbarch, 4);
+ set_gdbarch_register_raw_size (gdbarch, mn10300_register_raw_size);
+ set_gdbarch_register_byte (gdbarch, mn10300_register_byte);
+ set_gdbarch_max_register_virtual_size (gdbarch, 4);
+ set_gdbarch_register_virtual_size (gdbarch, mn10300_register_virtual_size);
+ set_gdbarch_register_virtual_type (gdbarch, mn10300_register_virtual_type);
+ set_gdbarch_dwarf2_reg_to_regnum (gdbarch, mn10300_dwarf2_reg_to_regnum);
+ set_gdbarch_do_registers_info (gdbarch, mn10300_do_registers_info);
+ set_gdbarch_fp_regnum (gdbarch, 31);
+
+ /* Breakpoints. */
+ set_gdbarch_breakpoint_from_pc (gdbarch, mn10300_breakpoint_from_pc);
+ set_gdbarch_function_start_offset (gdbarch, 0);
+ set_gdbarch_decr_pc_after_break (gdbarch, 0);
+
+ /* Stack unwinding. */
+ set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register);
+ set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
+ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+ set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
+ set_gdbarch_saved_pc_after_call (gdbarch, mn10300_saved_pc_after_call);
+ set_gdbarch_init_extra_frame_info (gdbarch, mn10300_init_extra_frame_info);
+ set_gdbarch_frame_init_saved_regs (gdbarch, mn10300_frame_init_saved_regs);
+ set_gdbarch_frame_chain (gdbarch, mn10300_frame_chain);
+ set_gdbarch_frame_saved_pc (gdbarch, mn10300_frame_saved_pc);
+ set_gdbarch_extract_return_value (gdbarch, mn10300_extract_return_value);
+ set_gdbarch_extract_struct_value_address
+ (gdbarch, mn10300_extract_struct_value_address);
+ set_gdbarch_store_return_value (gdbarch, mn10300_store_return_value);
+ set_gdbarch_store_struct_return (gdbarch, mn10300_store_struct_return);
+ set_gdbarch_pop_frame (gdbarch, mn10300_pop_frame);
+ set_gdbarch_skip_prologue (gdbarch, mn10300_skip_prologue);
+ set_gdbarch_frame_args_skip (gdbarch, 0);
+ set_gdbarch_frame_args_address (gdbarch, default_frame_address);
+ set_gdbarch_frame_locals_address (gdbarch, default_frame_address);
+ set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
+ /* That's right, we're using the stack pointer as our frame pointer. */
+ set_gdbarch_read_fp (gdbarch, generic_target_read_sp);
+
+ /* Calling functions in the inferior from GDB. */
+ set_gdbarch_call_dummy_p (gdbarch, 1);
+ set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
+ set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
+ set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
+ set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
+ set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
+ set_gdbarch_call_dummy_words (gdbarch, mn10300_call_dummy_words);
+ set_gdbarch_sizeof_call_dummy_words (gdbarch,
+ sizeof (mn10300_call_dummy_words));
+ set_gdbarch_call_dummy_length (gdbarch, 0);
+ set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy);
+ set_gdbarch_call_dummy_start_offset (gdbarch, 0);
+ set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_at_entry_point);
+ set_gdbarch_use_generic_dummy_frames (gdbarch, 1);
+ set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
+ set_gdbarch_push_arguments (gdbarch, mn10300_push_arguments);
+ set_gdbarch_reg_struct_has_addr (gdbarch, mn10300_reg_struct_has_addr);
+ set_gdbarch_push_return_address (gdbarch, mn10300_push_return_address);
+ set_gdbarch_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
+ set_gdbarch_use_struct_convention (gdbarch, mn10300_use_struct_convention);
+
+ tdep->am33_mode = am33_mode;
+
+ return gdbarch;
+}
+