+\f
+/* Initialize the current architecture based on INFO. If possible, re-use an
+ architecture from ARCHES, which is a list of architectures already created
+ during this debugging session.
+
+ Called e.g. at program startup, when reading a core file, and when reading
+ a binary file. */
+
+static struct gdbarch *
+vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+{
+ struct gdbarch *gdbarch;
+
+ /* Right now there is only one VAX architecture variant. */
+ if (arches != NULL)
+ return (arches->gdbarch);
+
+ gdbarch = gdbarch_alloc (&info, NULL);
+
+ /* Register info */
+ set_gdbarch_num_regs (gdbarch, VAX_NUM_REGS);
+ set_gdbarch_sp_regnum (gdbarch, VAX_SP_REGNUM);
+ set_gdbarch_fp_regnum (gdbarch, VAX_FP_REGNUM);
+ set_gdbarch_pc_regnum (gdbarch, VAX_PC_REGNUM);
+ set_gdbarch_ps_regnum (gdbarch, VAX_PS_REGNUM);
+
+ set_gdbarch_register_name (gdbarch, vax_register_name);
+ set_gdbarch_register_size (gdbarch, VAX_REGISTER_SIZE);
+ set_gdbarch_register_bytes (gdbarch, VAX_REGISTER_BYTES);
+ set_gdbarch_register_byte (gdbarch, vax_register_byte);
+ set_gdbarch_register_raw_size (gdbarch, vax_register_raw_size);
+ set_gdbarch_max_register_raw_size (gdbarch, VAX_MAX_REGISTER_RAW_SIZE);
+ set_gdbarch_register_virtual_size (gdbarch, vax_register_virtual_size);
+ set_gdbarch_max_register_virtual_size (gdbarch,
+ VAX_MAX_REGISTER_VIRTUAL_SIZE);
+ set_gdbarch_register_virtual_type (gdbarch, vax_register_virtual_type);
+
+ /* Frame and stack info */
+ set_gdbarch_skip_prologue (gdbarch, vax_skip_prologue);
+ set_gdbarch_saved_pc_after_call (gdbarch, vax_saved_pc_after_call);
+
+ set_gdbarch_frame_num_args (gdbarch, vax_frame_num_args);
+ set_gdbarch_frameless_function_invocation (gdbarch,
+ generic_frameless_function_invocation_not);
+
+ set_gdbarch_frame_chain (gdbarch, vax_frame_chain);
+ set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
+ set_gdbarch_frame_saved_pc (gdbarch, vax_frame_saved_pc);
+
+ set_gdbarch_frame_args_address (gdbarch, vax_frame_args_address);
+ set_gdbarch_frame_locals_address (gdbarch, vax_frame_locals_address);
+
+ set_gdbarch_frame_init_saved_regs (gdbarch, vax_frame_init_saved_regs);
+
+ set_gdbarch_frame_args_skip (gdbarch, 4);
+
+ set_gdbarch_get_saved_register (gdbarch, vax_get_saved_register);
+
+ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+
+ /* Return value info */
+ set_gdbarch_store_struct_return (gdbarch, vax_store_struct_return);
+ set_gdbarch_extract_return_value (gdbarch, vax_extract_return_value);
+ set_gdbarch_store_return_value (gdbarch, vax_store_return_value);
+ set_gdbarch_extract_struct_value_address (gdbarch,
+ vax_extract_struct_value_address);
+
+ /* Call dummy info */
+ set_gdbarch_push_dummy_frame (gdbarch, vax_push_dummy_frame);
+ set_gdbarch_pop_frame (gdbarch, vax_pop_frame);
+ set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
+ set_gdbarch_call_dummy_p (gdbarch, 1);
+ set_gdbarch_call_dummy_words (gdbarch, vax_call_dummy_words);
+ set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof_vax_call_dummy_words);
+ set_gdbarch_fix_call_dummy (gdbarch, vax_fix_call_dummy);
+ set_gdbarch_call_dummy_start_offset (gdbarch, 0);
+ set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
+ set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 7);
+ set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
+ set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_on_stack);
+ set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
+
+ /* Breakpoint info */
+ set_gdbarch_decr_pc_after_break (gdbarch, 0);
+
+ /* Misc info */
+ set_gdbarch_function_start_offset (gdbarch, 2);
+
+ return (gdbarch);
+}