gdbarch_alloc (const struct gdbarch_info *info,
struct gdbarch_tdep *tdep)
{
- struct gdbarch *gdbarch = XMALLOC (struct gdbarch);
- memset (gdbarch, 0, sizeof (*gdbarch));
+ /* NOTE: The new architecture variable is named ``current_gdbarch''
+ so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
+ the current local architecture and not the previous global
+ architecture. This ensures that the new architectures initial
+ values are not influenced by the previous architecture. Once
+ everything is parameterised with gdbarch, this will go away. */
+ struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
+ memset (current_gdbarch, 0, sizeof (*current_gdbarch));
- alloc_gdbarch_data (gdbarch);
+ alloc_gdbarch_data (current_gdbarch);
- gdbarch->tdep = tdep;
+ current_gdbarch->tdep = tdep;
- gdbarch->bfd_arch_info = info->bfd_arch_info;
- gdbarch->byte_order = info->byte_order;
+ current_gdbarch->bfd_arch_info = info->bfd_arch_info;
+ current_gdbarch->byte_order = info->byte_order;
/* Force the explicit initialization of these. */
- gdbarch->short_bit = 2*TARGET_CHAR_BIT;
- gdbarch->int_bit = 4*TARGET_CHAR_BIT;
- gdbarch->long_bit = 4*TARGET_CHAR_BIT;
- gdbarch->long_long_bit = 2*TARGET_LONG_BIT;
- gdbarch->float_bit = 4*TARGET_CHAR_BIT;
- gdbarch->double_bit = 8*TARGET_CHAR_BIT;
- gdbarch->long_double_bit = 2*TARGET_DOUBLE_BIT;
- gdbarch->ptr_bit = TARGET_INT_BIT;
- gdbarch->bfd_vma_bit = TARGET_ARCHITECTURE->bits_per_address;
- gdbarch->read_pc = generic_target_read_pc;
- gdbarch->write_pc = generic_target_write_pc;
- gdbarch->read_fp = generic_target_read_fp;
- gdbarch->write_fp = generic_target_write_fp;
- gdbarch->read_sp = generic_target_read_sp;
- gdbarch->write_sp = generic_target_write_sp;
- gdbarch->virtual_frame_pointer = legacy_virtual_frame_pointer;
- gdbarch->num_regs = -1;
- gdbarch->sp_regnum = -1;
- gdbarch->fp_regnum = -1;
- gdbarch->pc_regnum = -1;
- gdbarch->fp0_regnum = -1;
- gdbarch->npc_regnum = -1;
- gdbarch->nnpc_regnum = -1;
- gdbarch->stab_reg_to_regnum = no_op_reg_to_regnum;
- gdbarch->ecoff_reg_to_regnum = no_op_reg_to_regnum;
- gdbarch->dwarf_reg_to_regnum = no_op_reg_to_regnum;
- gdbarch->sdb_reg_to_regnum = no_op_reg_to_regnum;
- gdbarch->dwarf2_reg_to_regnum = no_op_reg_to_regnum;
- gdbarch->register_name = legacy_register_name;
- gdbarch->register_size = -1;
- gdbarch->register_bytes = -1;
- gdbarch->max_register_raw_size = -1;
- gdbarch->max_register_virtual_size = -1;
- gdbarch->do_registers_info = do_registers_info;
- gdbarch->register_sim_regno = default_register_sim_regno;
- gdbarch->cannot_fetch_register = cannot_register_not;
- gdbarch->cannot_store_register = cannot_register_not;
- gdbarch->use_generic_dummy_frames = -1;
- gdbarch->call_dummy_start_offset = -1;
- gdbarch->call_dummy_breakpoint_offset = -1;
- gdbarch->call_dummy_breakpoint_offset_p = -1;
- gdbarch->call_dummy_length = -1;
- gdbarch->call_dummy_p = -1;
- gdbarch->call_dummy_words = legacy_call_dummy_words;
- gdbarch->sizeof_call_dummy_words = legacy_sizeof_call_dummy_words;
- gdbarch->call_dummy_stack_adjust_p = -1;
- gdbarch->init_frame_pc_first = init_frame_pc_noop;
- gdbarch->init_frame_pc = init_frame_pc_default;
- gdbarch->coerce_float_to_double = default_coerce_float_to_double;
- gdbarch->register_convertible = generic_register_convertible_not;
- gdbarch->pointer_to_address = unsigned_pointer_to_address;
- gdbarch->address_to_pointer = unsigned_address_to_pointer;
- gdbarch->return_value_on_stack = generic_return_value_on_stack_not;
- gdbarch->prologue_frameless_p = generic_prologue_frameless_p;
- gdbarch->breakpoint_from_pc = legacy_breakpoint_from_pc;
- gdbarch->memory_insert_breakpoint = default_memory_insert_breakpoint;
- gdbarch->memory_remove_breakpoint = default_memory_remove_breakpoint;
- gdbarch->decr_pc_after_break = -1;
- gdbarch->prepare_to_proceed = default_prepare_to_proceed;
- gdbarch->function_start_offset = -1;
- gdbarch->remote_translate_xfer_address = generic_remote_translate_xfer_address;
- gdbarch->frame_args_skip = -1;
- gdbarch->frameless_function_invocation = generic_frameless_function_invocation_not;
- gdbarch->extra_stack_alignment_needed = 1;
- gdbarch->convert_from_func_ptr_addr = core_addr_identity;
- gdbarch->addr_bits_remove = core_addr_identity;
- gdbarch->print_insn = legacy_print_insn;
- gdbarch->skip_trampoline_code = generic_skip_trampoline_code;
+ current_gdbarch->short_bit = 2*TARGET_CHAR_BIT;
+ current_gdbarch->int_bit = 4*TARGET_CHAR_BIT;
+ current_gdbarch->long_bit = 4*TARGET_CHAR_BIT;
+ current_gdbarch->long_long_bit = 2*TARGET_LONG_BIT;
+ current_gdbarch->float_bit = 4*TARGET_CHAR_BIT;
+ current_gdbarch->double_bit = 8*TARGET_CHAR_BIT;
+ current_gdbarch->long_double_bit = 2*TARGET_DOUBLE_BIT;
+ current_gdbarch->ptr_bit = TARGET_INT_BIT;
+ current_gdbarch->bfd_vma_bit = TARGET_ARCHITECTURE->bits_per_address;
+ current_gdbarch->read_pc = generic_target_read_pc;
+ current_gdbarch->write_pc = generic_target_write_pc;
+ current_gdbarch->read_fp = generic_target_read_fp;
+ current_gdbarch->write_fp = generic_target_write_fp;
+ current_gdbarch->read_sp = generic_target_read_sp;
+ current_gdbarch->write_sp = generic_target_write_sp;
+ current_gdbarch->virtual_frame_pointer = legacy_virtual_frame_pointer;
+ current_gdbarch->num_regs = -1;
+ current_gdbarch->sp_regnum = -1;
+ current_gdbarch->fp_regnum = -1;
+ current_gdbarch->pc_regnum = -1;
+ current_gdbarch->fp0_regnum = -1;
+ current_gdbarch->npc_regnum = -1;
+ current_gdbarch->nnpc_regnum = -1;
+ current_gdbarch->stab_reg_to_regnum = no_op_reg_to_regnum;
+ current_gdbarch->ecoff_reg_to_regnum = no_op_reg_to_regnum;
+ current_gdbarch->dwarf_reg_to_regnum = no_op_reg_to_regnum;
+ current_gdbarch->sdb_reg_to_regnum = no_op_reg_to_regnum;
+ current_gdbarch->dwarf2_reg_to_regnum = no_op_reg_to_regnum;
+ current_gdbarch->register_name = legacy_register_name;
+ current_gdbarch->register_size = -1;
+ current_gdbarch->register_bytes = -1;
+ current_gdbarch->max_register_raw_size = -1;
+ current_gdbarch->max_register_virtual_size = -1;
+ current_gdbarch->do_registers_info = do_registers_info;
+ current_gdbarch->register_sim_regno = default_register_sim_regno;
+ current_gdbarch->cannot_fetch_register = cannot_register_not;
+ current_gdbarch->cannot_store_register = cannot_register_not;
+ current_gdbarch->use_generic_dummy_frames = -1;
+ current_gdbarch->call_dummy_start_offset = -1;
+ current_gdbarch->call_dummy_breakpoint_offset = -1;
+ current_gdbarch->call_dummy_breakpoint_offset_p = -1;
+ current_gdbarch->call_dummy_length = -1;
+ current_gdbarch->call_dummy_p = -1;
+ current_gdbarch->call_dummy_words = legacy_call_dummy_words;
+ current_gdbarch->sizeof_call_dummy_words = legacy_sizeof_call_dummy_words;
+ current_gdbarch->call_dummy_stack_adjust_p = -1;
+ current_gdbarch->init_frame_pc_first = init_frame_pc_noop;
+ current_gdbarch->init_frame_pc = init_frame_pc_default;
+ current_gdbarch->coerce_float_to_double = default_coerce_float_to_double;
+ current_gdbarch->register_convertible = generic_register_convertible_not;
+ current_gdbarch->pointer_to_address = unsigned_pointer_to_address;
+ current_gdbarch->address_to_pointer = unsigned_address_to_pointer;
+ current_gdbarch->return_value_on_stack = generic_return_value_on_stack_not;
+ current_gdbarch->prologue_frameless_p = generic_prologue_frameless_p;
+ current_gdbarch->breakpoint_from_pc = legacy_breakpoint_from_pc;
+ current_gdbarch->memory_insert_breakpoint = default_memory_insert_breakpoint;
+ current_gdbarch->memory_remove_breakpoint = default_memory_remove_breakpoint;
+ current_gdbarch->decr_pc_after_break = -1;
+ current_gdbarch->prepare_to_proceed = default_prepare_to_proceed;
+ current_gdbarch->function_start_offset = -1;
+ current_gdbarch->remote_translate_xfer_address = generic_remote_translate_xfer_address;
+ current_gdbarch->frame_args_skip = -1;
+ current_gdbarch->frameless_function_invocation = generic_frameless_function_invocation_not;
+ current_gdbarch->extra_stack_alignment_needed = 1;
+ current_gdbarch->convert_from_func_ptr_addr = core_addr_identity;
+ current_gdbarch->addr_bits_remove = core_addr_identity;
+ current_gdbarch->print_insn = legacy_print_insn;
+ current_gdbarch->skip_trampoline_code = generic_skip_trampoline_code;
/* gdbarch_alloc() */
- return gdbarch;
+ return current_gdbarch;
}
projects / deliverable / binutils-gdb.git / blobdiff