static struct gdbarch * sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) { struct gdbarch_tdep *tdep; struct gdbarch *gdbarch; /* If there is already a candidate, use it. */ arches = gdbarch_list_lookup_by_info (arches, &info); if (arches != NULL) return arches->gdbarch; /* Allocate space for the new architecture. */ tdep = XMALLOC (struct gdbarch_tdep); gdbarch = gdbarch_alloc (&info, tdep); tdep->pc_regnum = SPARC32_PC_REGNUM; tdep->npc_regnum = SPARC32_NPC_REGNUM; tdep->gregset = NULL; tdep->sizeof_gregset = 0; tdep->fpregset = NULL; tdep->sizeof_fpregset = 0; tdep->plt_entry_size = 0; tdep->step_trap = sparc_step_trap; set_gdbarch_long_double_bit (gdbarch, 128); set_gdbarch_long_double_format (gdbarch, &floatformat_sparc_quad); set_gdbarch_num_regs (gdbarch, SPARC32_NUM_REGS); set_gdbarch_register_name (gdbarch, sparc32_register_name); set_gdbarch_register_type (gdbarch, sparc32_register_type); set_gdbarch_num_pseudo_regs (gdbarch, SPARC32_NUM_PSEUDO_REGS); set_gdbarch_pseudo_register_read (gdbarch, sparc32_pseudo_register_read); set_gdbarch_pseudo_register_write (gdbarch, sparc32_pseudo_register_write); /* Register numbers of various important registers. */ set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM); /* %sp */ set_gdbarch_pc_regnum (gdbarch, SPARC32_PC_REGNUM); /* %pc */ set_gdbarch_fp0_regnum (gdbarch, SPARC_F0_REGNUM); /* %f0 */ /* Call dummy code. */ set_gdbarch_call_dummy_location (gdbarch, ON_STACK); set_gdbarch_push_dummy_code (gdbarch, sparc32_push_dummy_code); set_gdbarch_push_dummy_call (gdbarch, sparc32_push_dummy_call); set_gdbarch_return_value (gdbarch, sparc32_return_value); set_gdbarch_stabs_argument_has_addr (gdbarch, sparc32_stabs_argument_has_addr); set_gdbarch_skip_prologue (gdbarch, sparc32_skip_prologue); /* Stack grows downward. */ set_gdbarch_inner_than (gdbarch, core_addr_lessthan); set_gdbarch_breakpoint_from_pc (gdbarch, sparc_breakpoint_from_pc); set_gdbarch_frame_args_skip (gdbarch, 8); set_gdbarch_print_insn (gdbarch, print_insn_sparc); set_gdbarch_software_single_step (gdbarch, sparc_software_single_step); set_gdbarch_write_pc (gdbarch, sparc_write_pc); set_gdbarch_unwind_dummy_id (gdbarch, sparc_unwind_dummy_id); set_gdbarch_unwind_pc (gdbarch, sparc_unwind_pc); frame_base_set_default (gdbarch, &sparc32_frame_base); /* Hook in the DWARF CFI frame unwinder. */ dwarf2_frame_set_init_reg (gdbarch, sparc32_dwarf2_frame_init_reg); /* FIXME: kettenis/20050423: Don't enable the unwinder until the StackGhost issues have been resolved. */ /* Hook in ABI-specific overrides, if they have been registered. */ gdbarch_init_osabi (info, gdbarch); frame_unwind_append_sniffer (gdbarch, sparc32_frame_sniffer); /* If we have register sets, enable the generic core file support. */ if (tdep->gregset) set_gdbarch_regset_from_core_section (gdbarch, sparc_regset_from_core_section); return gdbarch; }
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_sp_regnum (gdbarch, 8); set_gdbarch_pc_regnum (gdbarch, 9); set_gdbarch_fp_regnum (gdbarch, 31); set_gdbarch_virtual_frame_pointer (gdbarch, mn10300_virtual_frame_pointer); /* 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_unwind_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_init_frame_pc (gdbarch, init_frame_pc_noop); 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_deprecated_extract_return_value (gdbarch, mn10300_extract_return_value); set_gdbarch_deprecated_extract_struct_value_address (gdbarch, mn10300_extract_struct_value_address); set_gdbarch_deprecated_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; }