old-cross-binutils/gdb/iq2000-tdep.c
Ulrich Weigand e17a411335 * defs.h (extract_signed_integer, extract_unsigned_integer,
extract_long_unsigned_integer, store_signed_integer,
	store_unsigned_integer): Add BYTE_ORDER parameter.
	* findvar.c (extract_signed_integer, extract_unsigned_integer,
	extract_long_unsigned_integer, store_signed_integer,
	store_unsigned_integer): Add BYTE_ORDER parameter.  Use it
	instead of current_gdbarch.

	* gdbcore.h (read_memory_integer, safe_read_memory_integer,
	read_memory_unsigned_integer, write_memory_signed_integer,
	write_memory_unsigned_integer): Add BYTE_ORDER parameter.
	* corefile.c (struct captured_read_memory_integer_arguments): Add
	BYTE_ORDER member.
	(safe_read_memory_integer): Add BYTE_ORDER parameter.  Store it into
	struct captured_read_memory_integer_arguments.
	(do_captured_read_memory_integer): Pass it to read_memory_integer.
	(read_memory_integer): Add BYTE_ORDER parameter.  Pass it to
	extract_signed_integer.
	(read_memory_unsigned_integer): Add BYTE_ORDER parameter.  Pass it to
	extract_unsigned_integer.
	(write_memory_signed_integer): Add BYTE_ORDER parameter.  Pass it
	to store_signed_integer.
	(write_memory_unsigned_integer): Add BYTE_ORDER parameter.  Pass it
	to store_unsigned_integer.

	* target.h (get_target_memory_unsigned): Add BYTE_ORDER parameter.
	* target.c (get_target_memory_unsigned): Add BYTE_ORDER parameter.
	Pass it to extract_unsigned_integer.


	Update calls to extract_signed_integer, extract_unsigned_integer,
	extract_long_unsigned_integer, store_signed_integer,
	store_unsigned_integer, read_memory_integer,
	read_memory_unsigned_integer, safe_read_memory_integer,
	write_memory_signed_integer, write_memory_unsigned_integer, and
	get_target_memory_unsigned to pass byte order:
	* ada-lang.c (ada_value_binop): Update.
	* ada-valprint.c (char_at): Update.
	* alpha-osf1-tdep.c (alpha_osf1_sigcontext_addr): Update.
	* alpha-tdep.c (alpha_lds, alpha_sts, alpha_push_dummy_call,
	alpha_extract_return_value, alpha_read_insn,
	alpha_get_longjmp_target): Update.
	* amd64-linux-tdep.c (amd64_linux_sigcontext_addr): Update.
	* amd64obsd-tdep.c (amd64obsd_supply_uthread,
	amd64obsd_collect_uthread, amd64obsd_trapframe_cache): Update.
	* amd64-tdep.c (amd64_push_dummy_call, amd64_analyze_prologue,
	amd64_frame_cache, amd64_sigtramp_frame_cache, fixup_riprel,
	amd64_displaced_step_fixup): Update.
	* arm-linux-tdep.c (arm_linux_sigreturn_init,
	arm_linux_rt_sigreturn_init, arm_linux_supply_gregset): Update.
	* arm-tdep.c (thumb_analyze_prologue, arm_skip_prologue,
	arm_scan_prologue, arm_push_dummy_call, thumb_get_next_pc,
	arm_get_next_pc, arm_extract_return_value, arm_store_return_value,
	arm_return_value): Update.
	* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
	* auxv.c (default_auxv_parse): Update.
	* avr-tdep.c (avr_address_to_pointer, avr_pointer_to_address,
	avr_scan_prologue, avr_extract_return_value,
	avr_frame_prev_register, avr_push_dummy_call): Update.
	* bsd-uthread.c (bsd_uthread_check_magic, bsd_uthread_lookup_offset,
	bsd_uthread_wait, bsd_uthread_thread_alive,
	bsd_uthread_extra_thread_info): Update.
	* c-lang.c (c_printstr, print_wchar): Update.
	* cp-valprint.c (cp_print_class_member): Update.
	* cris-tdep.c (cris_sigcontext_addr, cris_sigtramp_frame_unwind_cache,
	cris_push_dummy_call, cris_scan_prologue, cris_store_return_value,
	cris_extract_return_value, find_step_target, dip_prefix,
	sixteen_bit_offset_branch_op, none_reg_mode_jump_op,
	move_mem_to_reg_movem_op, get_data_from_address): Update.
	* dwarf2expr.c (dwarf2_read_address, execute_stack_op): Update.
	* dwarf2-frame.c (execute_cfa_program): Update.
	* dwarf2loc.c (find_location_expression): Update.
	* dwarf2read.c (dwarf2_const_value): Update.
	* expprint.c (print_subexp_standard): Update.
	* findvar.c (unsigned_pointer_to_address, signed_pointer_to_address,
	unsigned_address_to_pointer, address_to_signed_pointer,
	read_var_value): Update.
	* frame.c (frame_unwind_register_signed,
	frame_unwind_register_unsigned, get_frame_memory_signed,
	get_frame_memory_unsigned): Update.
	* frame-unwind.c (frame_unwind_got_constant): Update.
	* frv-linux-tdep.c (frv_linux_pc_in_sigtramp,
	frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache):
	Update.
	* frv-tdep.c (frv_analyze_prologue, frv_skip_main_prologue,
	frv_extract_return_value, find_func_descr,
	frv_convert_from_func_ptr_addr, frv_push_dummy_call): Update.
	* f-valprint.c (f_val_print): Update.
	* gnu-v3-abi.c (gnuv3_decode_method_ptr, gnuv3_make_method_ptr):
	Update.
	* h8300-tdep.c (h8300_is_argument_spill, h8300_analyze_prologue,
	h8300_push_dummy_call, h8300_extract_return_value,
	h8300h_extract_return_value, h8300_store_return_value,
	h8300h_store_return_value): Update.
	* hppabsd-tdep.c (hppabsd_find_global_pointer): Update.
	* hppa-hpux-nat.c (hppa_hpux_fetch_register, hppa_hpux_store_register):
	Update.
	* hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline,
	hppa64_hpux_in_solib_call_trampoline,
	hppa_hpux_in_solib_return_trampoline, hppa_hpux_skip_trampoline_code,
	hppa_hpux_sigtramp_frame_unwind_cache,
	hppa_hpux_sigtramp_unwind_sniffer, hppa32_hpux_find_global_pointer,
	hppa64_hpux_find_global_pointer, hppa_hpux_search_pattern,
	hppa32_hpux_search_dummy_call_sequence,
	hppa64_hpux_search_dummy_call_sequence, hppa_hpux_supply_save_state,
	hppa_hpux_unwind_adjust_stub): Update.
	* hppa-linux-tdep.c (insns_match_pattern,
	hppa_linux_find_global_pointer): Update.
	* hppa-tdep.c (hppa_in_function_epilogue_p, hppa32_push_dummy_call,
	hppa64_convert_code_addr_to_fptr, hppa64_push_dummy_call,
	skip_prologue_hard_way, hppa_frame_cache, hppa_fallback_frame_cache,
	hppa_pseudo_register_read, hppa_frame_prev_register_helper,
	hppa_match_insns): Update.
	* hpux-thread.c (hpux_thread_fetch_registers): Update.
	* i386-tdep.c (i386bsd_sigcontext_addr): Update.
	* i386-cygwin-tdep.c (core_process_module_section): Update.
	* i386-darwin-nat.c (i386_darwin_sstep_at_sigreturn,
	amd64_darwin_sstep_at_sigreturn): Update.
	* i386-darwin-tdep.c (i386_darwin_sigcontext_addr,
	amd64_darwin_sigcontext_addr): Likewise.
	* i386-linux-nat.c (i386_linux_sigcontext_addr): Update.
	* i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Update.
	* i386-nto-tdep.c (i386nto_sigcontext_addr): Update.
	* i386obsd-nat.c (i386obsd_supply_pcb): Update.
	* i386obsd-tdep.c (i386obsd_supply_uthread, i386obsd_collect_uthread,
	i386obsd_trapframe_cache): Update.
	* i386-tdep.c (i386_displaced_step_fixup, i386_follow_jump,
	i386_analyze_frame_setup, i386_analyze_prologue,
	i386_skip_main_prologue, i386_frame_cache, i386_sigtramp_frame_cache,
	i386_get_longjmp_target, i386_push_dummy_call,
	i386_pe_skip_trampoline_code, i386_svr4_sigcontext_addr,
	i386_fetch_pointer_argument): Update.
	* i387-tdep.c (i387_supply_fsave): Update.
	* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Update.
	* ia64-tdep.c (ia64_pseudo_register_read, ia64_pseudo_register_write,
	examine_prologue, ia64_frame_cache, ia64_frame_prev_register,
	ia64_sigtramp_frame_cache, ia64_sigtramp_frame_prev_register,
	ia64_access_reg, ia64_access_rse_reg, ia64_libunwind_frame_this_id,
	ia64_libunwind_frame_prev_register,
	ia64_libunwind_sigtramp_frame_this_id,
	ia64_libunwind_sigtramp_frame_prev_register, ia64_find_global_pointer,
	find_extant_func_descr, find_func_descr,
	ia64_convert_from_func_ptr_addr, ia64_push_dummy_call, ia64_dummy_id,
	ia64_unwind_pc): Update.
	* iq2000-tdep.c (iq2000_pointer_to_address, iq2000_address_to_pointer,
	iq2000_scan_prologue, iq2000_extract_return_value,
	iq2000_push_dummy_call): Update.
	* irix5nat.c (fill_gregset): Update.
	* jv-lang.c (evaluate_subexp_java): Update.
	* jv-valprint.c (java_value_print): Update.
	* lm32-tdep.c (lm32_analyze_prologue, lm32_push_dummy_call,
	lm32_extract_return_value, lm32_store_return_value): Update.
	* m32c-tdep.c (m32c_push_dummy_call, m32c_return_value,
	m32c_skip_trampoline_code, m32c_m16c_address_to_pointer,
	m32c_m16c_pointer_to_address): Update.
	* m32r-tdep.c (m32r_store_return_value, decode_prologue,
	m32r_skip_prologue, m32r_push_dummy_call, m32r_extract_return_value):
	Update.
	* m68hc11-tdep.c (m68hc11_pseudo_register_read,
	m68hc11_pseudo_register_write, m68hc11_analyze_instruction,
	m68hc11_push_dummy_call): Update.
	* m68linux-tdep.c (m68k_linux_pc_in_sigtramp,
	m68k_linux_get_sigtramp_info, m68k_linux_sigtramp_frame_cache):
	Update.
	* m68k-tdep.c (m68k_push_dummy_call, m68k_analyze_frame_setup,
	m68k_analyze_register_saves, m68k_analyze_prologue, m68k_frame_cache,
	m68k_get_longjmp_target): Update.
	* m88k-tdep.c (m88k_fetch_instruction): Update.
	* mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_csr_write,
	mep_pseudo_cr32_write, mep_get_insn, mep_push_dummy_call): Update.
	* mi/mi-main.c (mi_cmd_data_write_memory): Update.
	* mips-linux-tdep.c (mips_linux_get_longjmp_target, supply_32bit_reg,
	mips64_linux_get_longjmp_target, mips64_fill_gregset,
	mips64_fill_fpregset, mips_linux_in_dynsym_stub): Update.
	* mipsnbdsd-tdep.c (mipsnbsd_get_longjmp_target): Update.
	* mips-tdep.c (mips_fetch_instruction, fetch_mips_16,
	mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call,
	mips_o32_push_dummy_call, mips_o64_push_dummy_call,
	mips_single_step_through_delay, mips_skip_pic_trampoline_code,
	mips_integer_to_address): Update.
	* mn10300-tdep.c (mn10300_analyze_prologue, mn10300_push_dummy_call):
	Update.
	* monitor.c (monitor_supply_register, monitor_write_memory,
	monitor_read_memory_single): Update.
	* moxie-tdep.c (moxie_store_return_value, moxie_extract_return_value,
	moxie_analyze_prologue): Update.
	* mt-tdep.c (mt_return_value, mt_skip_prologue, mt_select_coprocessor,
	mt_pseudo_register_read, mt_pseudo_register_write, mt_registers_info,
	mt_push_dummy_call): Update.
	* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
	read_objc_methlist_method, read_objc_object, read_objc_super,
	read_objc_class, find_implementation_from_class): Update.
	* ppc64-linux-tdep.c (ppc64_desc_entry_point,
	ppc64_linux_convert_from_func_ptr_addr, ppc_linux_sigtramp_cache):
	Update.
	* ppcobsd-tdep.c (ppcobsd_sigtramp_frame_sniffer,
	ppcobsd_sigtramp_frame_cache): Update.
	* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call,
	do_ppc_sysv_return_value, ppc64_sysv_abi_push_dummy_call,
	ppc64_sysv_abi_return_value): Update.
	* ppc-linux-nat.c (ppc_linux_auxv_parse): Update.
	* procfs.c (procfs_auxv_parse): Update.
	* p-valprint.c (pascal_val_print): Update.
	* regcache.c (regcache_raw_read_signed, regcache_raw_read_unsigned,
	regcache_raw_write_signed, regcache_raw_write_unsigned,
	regcache_cooked_read_signed, regcache_cooked_read_unsigned,
	regcache_cooked_write_signed, regcache_cooked_write_unsigned): Update.
	* remote-m32r-sdi.c (m32r_fetch_register): Update.
	* remote-mips.c (mips_wait, mips_fetch_registers, mips_xfer_memory):
	Update.
	* rs6000-aix-tdep.c (rs6000_push_dummy_call, rs6000_return_value,
	rs6000_convert_from_func_ptr_addr, branch_dest,
	rs6000_software_single_step): Update.
	* rs6000-tdep.c (rs6000_in_function_epilogue_p,
	ppc_displaced_step_fixup, ppc_deal_with_atomic_sequence,
	bl_to_blrl_insn_p, rs6000_fetch_instruction, skip_prologue,
	rs6000_skip_main_prologue, rs6000_skip_trampoline_code,
	rs6000_frame_cache): Update.
	* s390-tdep.c (s390_pseudo_register_read, s390_pseudo_register_write,
	s390x_pseudo_register_read, s390x_pseudo_register_write, s390_load,
	s390_backchain_frame_unwind_cache, s390_sigtramp_frame_unwind_cache,
	extend_simple_arg, s390_push_dummy_call, s390_return_value): Update.
	* scm-exp.c (scm_lreadr): Update.
	* scm-lang.c (scm_get_field, scm_unpack): Update.
	* scm-valprint.c (scm_val_print): Update.
	* score-tdep.c (score_breakpoint_from_pc, score_push_dummy_call,
	score_fetch_inst): Update.
	* sh64-tdep.c (look_for_args_moves, sh64_skip_prologue_hard_way,
	sh64_analyze_prologue, sh64_push_dummy_call, sh64_extract_return_value,
	sh64_pseudo_register_read, sh64_pseudo_register_write,
	sh64_frame_prev_register): Update:
	* sh-tdep.c (sh_analyze_prologue, sh_push_dummy_call_fpu,
	sh_push_dummy_call_nofpu, sh_extract_return_value_nofpu,
	sh_store_return_value_nofpu, sh_in_function_epilogue_p): Update.
	* solib-darwin.c (darwin_load_image_infos): Update.
	* solib-frv.c (fetch_loadmap, lm_base, frv_current_sos, enable_break2,
	find_canonical_descriptor_in_load_object): Update.
	* solib-irix.c (extract_mips_address, fetch_lm_info, irix_current_sos,
	irix_open_symbol_file_object): Update.
	* solib-som.c (som_solib_create_inferior_hook, link_map_start,
	som_current_sos, som_open_symbol_file_object): Update.
	* solib-sunos.c (SOLIB_EXTRACT_ADDRESS, LM_ADDR, LM_NEXT, LM_NAME):
	Update.
	* solib-svr4.c (read_program_header, scan_dyntag_auxv,
	solib_svr4_r_ldsomap): Update.
	* sparc64-linux-tdep.c (sparc64_linux_step_trap): Update.
	* sparc64obsd-tdep.c (sparc64obsd_supply_uthread,
	sparc64obsd_collect_uthread): Update.
	* sparc64-tdep.c (sparc64_pseudo_register_read,
	sparc64_pseudo_register_write, sparc64_supply_gregset,
	sparc64_collect_gregset): Update.
	* sparc-linux-tdep.c (sparc32_linux_step_trap): Update.
	* sparcobsd-tdep.c (sparc32obsd_supply_uthread,
	sparc32obsd_collect_uthread): Update.
	* sparc-tdep.c (sparc_fetch_wcookie, sparc32_push_dummy_code,
	sparc32_store_arguments, sparc32_return_value, sparc_supply_rwindow,
	sparc_collect_rwindow): Update.
	* spu-linux-nat.c (parse_spufs_run): Update.
	* spu-tdep.c (spu_pseudo_register_read_spu,
	spu_pseudo_register_write_spu, spu_pointer_to_address,
	spu_analyze_prologue, spu_in_function_epilogue_p,
	spu_frame_unwind_cache, spu_push_dummy_call, spu_software_single_step,
	spu_get_longjmp_target, spu_get_overlay_table, spu_overlay_update_osect,
	info_spu_signal_command, info_spu_mailbox_list, info_spu_dma_cmdlist,
	info_spu_dma_command, info_spu_proxydma_command): Update.
	* stack.c (print_frame_nameless_args, frame_info): Update.
	* symfile.c (read_target_long_array, simple_read_overlay_table,
	simple_read_overlay_region_table): Update.
	* target.c (debug_print_register): Update.
	* tramp-frame.c (tramp_frame_start): Update.
	* v850-tdep.c (v850_analyze_prologue, v850_push_dummy_call,
	v850_extract_return_value, v850_store_return_value,
	* valarith.c (value_binop, value_bit_index): Update.
	* valops.c (value_cast): Update.
	* valprint.c (val_print_type_code_int, val_print_string,
	read_string): Update.
	* value.c (unpack_long, unpack_double, unpack_field_as_long,
	modify_field, pack_long): Update.
	* vax-tdep.c (vax_store_arguments, vax_push_dummy_call,
	vax_skip_prologue): Update.
	* xstormy16-tdep.c (xstormy16_push_dummy_call,
	xstormy16_analyze_prologue, xstormy16_in_function_epilogue_p,
	xstormy16_resolve_jmp_table_entry, xstormy16_find_jmp_table_entry,
	xstormy16_pointer_to_address, xstormy16_address_to_pointer): Update.
	* xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read,
	xtensa_pseudo_register_write, xtensa_frame_cache,
	xtensa_push_dummy_call, call0_track_op, call0_frame_cache): Update.


	* dfp.h (decimal_to_string, decimal_from_string, decimal_from_integral,
	decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add
	BYTE_ORDER parameter.
	(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
	parameters.
	(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
	(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
	* dfp.c (match_endianness): Add BYTE_ORDER parameter.  Use it
	instead of current_gdbarch.
	(decimal_to_string, decimal_from_integral, decimal_from_floating,
	decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter.
	Pass it to match_endianness.
	(decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT
	parameters.  Pass them to match_endianness.
	(decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters.
	Pass them to match_endianness.
	(decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters.
	Pass them to match_endianness.
	* valarith.c (value_args_as_decimal): Add BYTE_ORDER_X and
	BYTE_ORDER_Y output parameters.
	(value_binop): Update call to value_args_as_decimal.

	Update calls to decimal_to_string, decimal_from_string,
	decimal_from_integral, decimal_from_floating, decimal_to_doublest,
	decimal_is_zero, decimal_binop, decimal_compare and decimal_convert
	to pass/receive byte order:
	* c-exp.y (parse_number): Update.
	* printcmd.c (printf_command): Update.
	* valarith.c (value_args_as_decimal, value_binop, value_logical_not,
	value_equal, value_less): Update.
	* valops.c (value_cast, value_one): Update.
	* valprint.c (print_decimal_floating): Update.
	* value.c (unpack_long, unpack_double): Update.
	* python/python-value.c (valpy_nonzero): Update.


	* ada-valprint.c (char_at): Add BYTE_ORDER parameter.
	(printstr): Update calls to char_at.
	(ada_val_print_array): Likewise.
	* valprint.c (read_string): Add BYTE_ORDER parameter.
	(val_print_string): Update call to read_string.
	* c-lang.c (c_get_string): Likewise.
	* charset.h (target_wide_charset): Add BYTE_ORDER parameter.
	* charset.c (target_wide_charset): Add BYTE_ORDER parameter.
	Use it instead of current_gdbarch.
	* printcmd.c (printf_command): Update calls to target_wide_charset.
	* c-lang.c (charset_for_string_type): Add BYTE_ORDER parameter.
	Pass to target_wide_charset.  Use it instead of current_gdbarch.
	(classify_type): Add BYTE_ORDER parameter.  Pass to
	charset_for_string_type.  Allow NULL encoding pointer.
	(print_wchar): Add BYTE_ORDER parameter.
	(c_emit_char): Update calls to classify_type and print_wchar.
	(c_printchar, c_printstr): Likewise.


	* gdbarch.sh (in_solib_return_trampoline): Convert to type "m".
	* gdbarch.c, gdbarch.h: Regenerate.
	* arch-utils.h (generic_in_solib_return_trampoline): Add GDBARCH
	parameter.
	* arch-utils.c (generic_in_solib_return_trampoline): Likewise.
	* hppa-hpux-tdep.c (hppa_hpux_in_solib_return_trampoline): Likewise.
	* rs6000-tdep.c (rs6000_in_solib_return_trampoline): Likewise.
	(rs6000_skip_trampoline_code): Update call.

	* alpha-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
	dynamic_sigtramp_offset and pc_in_sigtramp callbacks.
	(alpha_read_insn): Add GDBARCH parameter.
	* alpha-tdep.c (alpha_lds, alpha_sts): Add GDBARCH parameter.
	(alpha_register_to_value): Pass architecture to alpha_sts.
	(alpha_extract_return_value): Likewise.
	(alpha_value_to_register): Pass architecture to alpha_lds.
	(alpha_store_return_value): Likewise.
	(alpha_read_insn): Add GDBARCH parameter.
	(alpha_skip_prologue): Pass architecture to alpha_read_insn.
	(alpha_heuristic_proc_start): Likewise.
	(alpha_heuristic_frame_unwind_cache): Likewise.
	(alpha_next_pc): Likewise.
	(alpha_sigtramp_frame_this_id): Pass architecture to
	tdep->dynamic_sigtramp_offset callback.
	(alpha_sigtramp_frame_sniffer): Pass architecture to
	tdep->pc_in_sigtramp callback.
	* alphafbsd-tdep.c (alphafbsd_pc_in_sigtramp): Add GDBARCH parameter.
	(alphafbsd_sigtramp_offset): Likewise.
	* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): Add GDBARCH
	parameter.  Pass to alpha_read_insn.
	(alpha_linux_sigtramp_offset): Add GDBARCH parameter.  Pass to
	alpha_linux_sigtramp_offset_1.
	(alpha_linux_pc_in_sigtramp): Add GDBARCH parameter.  Pass to
	alpha_linux_sigtramp_offset.
	(alpha_linux_sigcontext_addr): Pass architecture to alpha_read_insn
	and alpha_linux_sigtramp_offset.
	* alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Add GDBARCH parameter.
	(alphanbsd_pc_in_sigtramp): Add GDBARCH parameter.  Pass to
	alphanbsd_sigtramp_offset.
	* alphaobsd-tdep.c (alphaobsd_sigtramp_offset): Add GDBARCH parameter.
	(alphaobsd_pc_in_sigtramp): Add GDBARCH parameter.  Pass to
	alpha_read_insn.
	(alphaobsd_sigcontext_addr): Pass architecture to
	alphaobsd_sigtramp_offset.
	* alpha-osf1-tdep.c (alpha_osf1_pc_in_sigtramp): Add GDBARCH
	parameter.

	* amd64-tdep.c (amd64_analyze_prologue): Add GDBARCH parameter.
	(amd64_skip_prologue): Pass architecture to amd64_analyze_prologue.
	(amd64_frame_cache): Likewise.

	* arm-tdep.c (SWAP_SHORT, SWAP_INT): Remove.
	(thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue,
	thumb_get_next_pc, arm_get_next_pc): Do not use SWAP_ macros.
	* arm-wince-tdep.c: Include "frame.h".

	* avr-tdep.c (EXTRACT_INSN): Remove.
	(avr_scan_prologue): Add GDBARCH argument, inline EXTRACT_INSN.
	(avr_skip_prologue): Pass architecture to avr_scan_prologue.
	(avr_frame_unwind_cache): Likewise.

	* cris-tdep.c (struct instruction_environment): Add BYTE_ORDER member.
	(find_step_target): Initialize it.
	(get_data_from_address): Add BYTE_ORDER parameter.
	(bdap_prefix): Pass byte order to get_data_from_address.
	(handle_prefix_assign_mode_for_aritm_op): Likewise.
	(three_operand_add_sub_cmp_and_or_op): Likewise.
	(handle_inc_and_index_mode_for_aritm_op): Likewise.

	* frv-linux-tdep.c (frv_linux_pc_in_sigtramp): Add GDBARCH parameter.
	(frv_linux_sigcontext_reg_addr): Pass architecture to
	frv_linux_pc_in_sigtramp.
	(frv_linux_sigtramp_frame_sniffer): Likewise.

	* h8300-tdep.c (h8300_is_argument_spill): Add GDBARCH parameter.
	(h8300_analyze_prologue): Add GDBARCH parameter.  Pass to
	h8300_is_argument_spill.
	(h8300_frame_cache, h8300_skip_prologue): Pass architecture
	to h8300_analyze_prologue.

	* hppa-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to
	in_solib_call_trampoline callback.
	(hppa_in_solib_call_trampoline): Add GDBARCH parameter.
	* hppa-tdep.c (hppa64_convert_code_addr_to_fptr): Add GDBARCH
	parameter.
	(hppa64_push_dummy_call): Pass architecture to
	hppa64_convert_code_addr_to_fptr.
	(hppa_match_insns): Add GDBARCH parameter.
	(hppa_match_insns_relaxed): Add GDBARCH parameter.  Pass to
	hppa_match_insns.
	(hppa_skip_trampoline_code): Pass architecture to hppa_match_insns.
	(hppa_in_solib_call_trampoline): Add GDBARCH parameter.  Pass to
	hppa_match_insns_relaxed.
	(hppa_stub_unwind_sniffer): Pass architecture to
	tdep->in_solib_call_trampoline callback.
	* hppa-hpux-tdep.c (hppa_hpux_search_pattern): Add GDBARCH parameter.
	(hppa32_hpux_search_dummy_call_sequence): Pass architecture to
	hppa_hpux_search_pattern.
	* hppa-linux-tdep.c (insns_match_pattern): Add GDBARCH parameter.
	(hppa_linux_sigtramp_find_sigcontext): Add GDBARCH parameter.
	Pass to insns_match_pattern.
	(hppa_linux_sigtramp_frame_unwind_cache): Pass architecture to
	hppa_linux_sigtramp_find_sigcontext.
	(hppa_linux_sigtramp_frame_sniffer): Likewise.
	(hppa32_hpux_in_solib_call_trampoline): Add GDBARCH parameter.
	(hppa64_hpux_in_solib_call_trampoline): Likewise.

	* i386-tdep.c (i386_follow_jump): Add GDBARCH parameter.
	(i386_analyze_frame_setup): Add GDBARCH parameter.
	(i386_analyze_prologue): Add GDBARCH parameter.  Pass to
	i386_follow_jump and i386_analyze_frame_setup.
	(i386_skip_prologue): Pass architecture to i386_analyze_prologue
	and i386_follow_jump.
	(i386_frame_cache): Pass architecture to i386_analyze_prologue.
	(i386_pe_skip_trampoline_code): Add FRAME parameter.
	* i386-tdep.h (i386_pe_skip_trampoline_code): Add FRAME parameter.
	* i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Pass
	frame to i386_pe_skip_trampoline_code.

	* ia64-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter
	to sigcontext_register_address callback.
	* ia64-tdep.c (ia64_find_global_pointer): Add GDBARCH parameter.
	(ia64_find_unwind_table): Pass architecture to
	ia64_find_global_pointer.
	(find_extant_func_descr): Add GDBARCH parameter.
	(find_func_descr): Pass architecture to find_extant_func_descr
	and ia64_find_global_pointer.
	(ia64_sigtramp_frame_init_saved_regs): Pass architecture to
	tdep->sigcontext_register_address callback.
	* ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Add
	GDBARCH parameter.

	* iq2000-tdep.c (iq2000_scan_prologue): Add GDBARCH parameter.
	(iq2000_frame_cache): Pass architecture to iq2000_scan_prologue.

	* lm32-tdep.c (lm32_analyze_prologue): Add GDBARCH parameter.
	(lm32_skip_prologue, lm32_frame_cache): Pass architecture to
	lm32_analyze_prologue.

	* m32r-tdep.c (decode_prologue): Add GDBARCH parameter.
	(m32r_skip_prologue): Pass architecture to decode_prologue.

	* m68hc11-tdep.c (m68hc11_analyze_instruction): Add GDBARCH parameter.
	(m68hc11_scan_prologue): Pass architecture to
	m68hc11_analyze_instruction.

	* m68k-tdep.c (m68k_analyze_frame_setup): Add GDBARCH parameter.
	(m68k_analyze_prologue): Pass architecture to
	m68k_analyze_frame_setup.

	* m88k-tdep.c (m88k_fetch_instruction): Add BYTE_ORDER parameter.
	(m88k_analyze_prologue): Add GDBARCH parameter.  Pass byte order
	to m88k_fetch_instruction.
	(m88k_skip_prologue): Pass architecture to m88k_analyze_prologue.
	(m88k_frame_cache): Likewise.

	* mep-tdep.c (mep_get_insn): Add GDBARCH parameter.
	(mep_analyze_prologue): Pass architecture to mep_get_insn.

	* mips-tdep.c (mips_fetch_instruction): Add GDBARCH parameter.
	(mips32_next_pc): Pass architecture to mips_fetch_instruction.
	(deal_with_atomic_sequence): Likewise.
	(unpack_mips16): Add GDBARCH parameter, pass to mips_fetch_instruction.
	(mips16_scan_prologue): Likewise.
	(mips32_scan_prologue): Likewise.
	(mips16_in_function_epilogue_p): Likewise.
	(mips32_in_function_epilogue_p): Likewise.
	(mips_about_to_return): Likewise.
	(mips_insn16_frame_cache): Pass architecture to mips16_scan_prologue.
	(mips_insn32_frame_cache): Pass architecture to mips32_scan_prologue.
	(mips_skip_prologue): Pass architecture to mips16_scan_prologue
	and mips32_scan_prologue.
	(mips_in_function_epilogue_p): Pass architecture to
	mips16_in_function_epilogue_p and
	mips32_in_function_epilogue_p.
	(heuristic_proc_start): Pass architecture to mips_fetch_instruction
	and mips_about_to_return.
	(mips_skip_mips16_trampoline_code): Pass architecture to
	mips_fetch_instruction.
	(fetch_mips_16): Add GDBARCH parameter.
	(mips16_next_pc): Pass architecture to fetch_mips_16.
	(extended_mips16_next_pc): Pass architecture to unpack_mips16 and
	fetch_mips_16.

	* objc-lang.c (read_objc_method, read_objc_methlist_nmethods,
	read_objc_methlist_method, read_objc_object, read_objc_super,
	read_objc_class): Add GDBARCH parameter.
	(find_implementation_from_class): Add GDBARCH parameter, pass
	to read_objc_class, read_objc_methlist_nmethods, and
	read_objc_methlist_method.
	(find_implementation): Add GDBARCH parameter, pass to
	read_objc_object and find_implementation_from_class.
	(resolve_msgsend, resolve_msgsend_stret): Pass architecture
	to find_implementation.
	(resolve_msgsend_super, resolve_msgsend_super_stret): Pass
	architecture to read_objc_super and find_implementation_from_class.

	* ppc64-linux-tdep.c (ppc64_desc_entry_point): Add GDBARCH parameter.
	(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target,
	ppc64_standard_linkage3_target): Pass architecture to
	ppc64_desc_entry_point.
	* rs6000-tdep.c (bl_to_blrl_insn_p): Add BYTE_ORDER parameter.
	(skip_prologue): Pass byte order to bl_to_blrl_insn_p.
	(rs6000_fetch_instruction): Add GDBARCH parameter.
	(rs6000_skip_stack_check): Add GDBARCH parameter, pass to
	rs6000_fetch_instruction.
	(skip_prologue): Pass architecture to rs6000_fetch_instruction.

	* remote-mips.c (mips_store_word): Return old_contents as host
	integer value instead of target bytes.

	* s390-tdep.c (struct s390_prologue_data): Add BYTE_ORDER member.
	(s390_analyze_prologue): Initialize it.
	(extend_simple_arg): Add GDBARCH parameter.
	(s390_push_dummy_call): Pass architecture to extend_simple_arg.

	* scm-lang.c (scm_get_field): Add BYTE_ORDER parameter.
	* scm-lang.h (scm_get_field): Add BYTE_ORDER parameter.
	(SCM_CAR, SCM_CDR): Pass SCM_BYTE_ORDER to scm_get_field.
	* scm-valprint.c (scm_scmval_print): Likewise.
	(scm_scmlist_print, scm_ipruk, scm_scmval_print): Define
	SCM_BYTE_ORDER.

	* sh64-tdep.c (look_for_args_moves): Add GDBARCH parameter.
	(sh64_skip_prologue_hard_way): Add GDBARCH parameter, pass to
	look_for_args_moves.
	(sh64_skip_prologue): Pass architecture to
	sh64_skip_prologue_hard_way.
	* sh-tdep.c (sh_analyze_prologue): Add GDBARCH parameter.
	(sh_skip_prologue): Pass architecture to sh_analyze_prologue.
	(sh_frame_cache): Likewise.

	* solib-irix.c (extract_mips_address): Add GDBARCH parameter.
	(fetch_lm_info, irix_current_sos, irix_open_symbol_file_object):
	Pass architecture to extract_mips_address.

	* sparc-tdep.h (sparc_fetch_wcookie): Add GDBARCH parameter.
	* sparc-tdep.c (sparc_fetch_wcookie): Add GDBARCH parameter.
	(sparc_supply_rwindow, sparc_collect_rwindow): Pass architecture
	to sparc_fetch_wcookie.
	(sparc32_frame_prev_register): Likewise.
	* sparc64-tdep.c (sparc64_frame_prev_register): Likewise.
	* sparc32nbsd-tdep.c (sparc32nbsd_sigcontext_saved_regs): Likewise.
	* sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_saved_regs): Likewise.

	* spu-tdep.c (spu_analyze_prologue): Add GDBARCH parameter.
	(spu_skip_prologue): Pass architecture to spu_analyze_prologue.
	(spu_virtual_frame_pointer): Likewise.
	(spu_frame_unwind_cache): Likewise.
	(info_spu_mailbox_list): Add BYTE_ORER parameter.
	(info_spu_mailbox_command): Pass byte order to info_spu_mailbox_list.
	(info_spu_dma_cmdlist): Add BYTE_ORER parameter.
	(info_spu_dma_command, info_spu_proxydma_command): Pass byte order
	to info_spu_dma_cmdlist.

	* symfile.c (read_target_long_array): Add GDBARCH parameter.
	(simple_read_overlay_table, simple_read_overlay_region_table,
	simple_overlay_update_1): Pass architecture to read_target_long_array.

	* v850-tdep.c (v850_analyze_prologue): Add GDBARCH parameter.
	(v850_frame_cache): Pass architecture to v850_analyze_prologue.

	* xstormy16-tdep.c (xstormy16_analyze_prologue): Add GDBARCH
	parameter.
	(xstormy16_skip_prologue, xstormy16_frame_cache): Pass architecture
	to xstormy16_analyze_prologue.
	(xstormy16_resolve_jmp_table_entry): Add GDBARCH parameter.
	(xstormy16_find_jmp_table_entry): Likewise.
	(xstormy16_skip_trampoline_code): Pass architecture to
	xstormy16_resolve_jmp_table_entry.
	(xstormy16_pointer_to_address): Likewise.
	(xstormy16_address_to_pointer): Pass architecture to
	xstormy16_find_jmp_table_entry.

	* xtensa-tdep.c (call0_track_op): Add GDBARCH parameter.
	(call0_analyze_prologue): Add GDBARCH parameter, pass to
	call0_track_op.
	(call0_frame_cache): Pass architecture to call0_analyze_prologue.
	(xtensa_skip_prologue): Likewise.
2009-07-02 17:25:59 +00:00

864 lines
26 KiB
C

/* Target-dependent code for the IQ2000 architecture, for GDB, the GNU
Debugger.
Copyright (C) 2000, 2004, 2005, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Red Hat.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame.h"
#include "frame-base.h"
#include "frame-unwind.h"
#include "dwarf2-frame.h"
#include "gdbtypes.h"
#include "value.h"
#include "dis-asm.h"
#include "gdb_string.h"
#include "arch-utils.h"
#include "regcache.h"
#include "osabi.h"
#include "gdbcore.h"
enum gdb_regnum
{
E_R0_REGNUM, E_R1_REGNUM, E_R2_REGNUM, E_R3_REGNUM,
E_R4_REGNUM, E_R5_REGNUM, E_R6_REGNUM, E_R7_REGNUM,
E_R8_REGNUM, E_R9_REGNUM, E_R10_REGNUM, E_R11_REGNUM,
E_R12_REGNUM, E_R13_REGNUM, E_R14_REGNUM, E_R15_REGNUM,
E_R16_REGNUM, E_R17_REGNUM, E_R18_REGNUM, E_R19_REGNUM,
E_R20_REGNUM, E_R21_REGNUM, E_R22_REGNUM, E_R23_REGNUM,
E_R24_REGNUM, E_R25_REGNUM, E_R26_REGNUM, E_R27_REGNUM,
E_R28_REGNUM, E_R29_REGNUM, E_R30_REGNUM, E_R31_REGNUM,
E_PC_REGNUM,
E_LR_REGNUM = E_R31_REGNUM, /* Link register. */
E_SP_REGNUM = E_R29_REGNUM, /* Stack pointer. */
E_FP_REGNUM = E_R27_REGNUM, /* Frame pointer. */
E_FN_RETURN_REGNUM = E_R2_REGNUM, /* Function return value register. */
E_1ST_ARGREG = E_R4_REGNUM, /* 1st function arg register. */
E_LAST_ARGREG = E_R11_REGNUM, /* Last function arg register. */
E_NUM_REGS = E_PC_REGNUM + 1
};
/* Use an invalid address value as 'not available' marker. */
enum { REG_UNAVAIL = (CORE_ADDR) -1 };
struct iq2000_frame_cache
{
/* Base address. */
CORE_ADDR base;
CORE_ADDR pc;
LONGEST framesize;
int using_fp;
CORE_ADDR saved_sp;
CORE_ADDR saved_regs [E_NUM_REGS];
};
/* Harvard methods: */
static CORE_ADDR
insn_ptr_from_addr (CORE_ADDR addr) /* CORE_ADDR to target pointer. */
{
return addr & 0x7fffffffL;
}
static CORE_ADDR
insn_addr_from_ptr (CORE_ADDR ptr) /* target_pointer to CORE_ADDR. */
{
return (ptr & 0x7fffffffL) | 0x80000000L;
}
/* Function: pointer_to_address
Convert a target pointer to an address in host (CORE_ADDR) format. */
static CORE_ADDR
iq2000_pointer_to_address (struct gdbarch *gdbarch,
struct type * type, const gdb_byte * buf)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
enum type_code target = TYPE_CODE (TYPE_TARGET_TYPE (type));
CORE_ADDR addr
= extract_unsigned_integer (buf, TYPE_LENGTH (type), byte_order);
if (target == TYPE_CODE_FUNC
|| target == TYPE_CODE_METHOD
|| TYPE_CODE_SPACE (TYPE_TARGET_TYPE (type)))
addr = insn_addr_from_ptr (addr);
return addr;
}
/* Function: address_to_pointer
Convert a host-format address (CORE_ADDR) into a target pointer. */
static void
iq2000_address_to_pointer (struct gdbarch *gdbarch,
struct type *type, gdb_byte *buf, CORE_ADDR addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
enum type_code target = TYPE_CODE (TYPE_TARGET_TYPE (type));
if (target == TYPE_CODE_FUNC || target == TYPE_CODE_METHOD)
addr = insn_ptr_from_addr (addr);
store_unsigned_integer (buf, TYPE_LENGTH (type), byte_order, addr);
}
/* Real register methods: */
/* Function: register_name
Returns the name of the iq2000 register number N. */
static const char *
iq2000_register_name (struct gdbarch *gdbarch, int regnum)
{
static const char * names[E_NUM_REGS] =
{
"r0", "r1", "r2", "r3", "r4",
"r5", "r6", "r7", "r8", "r9",
"r10", "r11", "r12", "r13", "r14",
"r15", "r16", "r17", "r18", "r19",
"r20", "r21", "r22", "r23", "r24",
"r25", "r26", "r27", "r28", "r29",
"r30", "r31",
"pc"
};
if (regnum < 0 || regnum >= E_NUM_REGS)
return NULL;
return names[regnum];
}
/* Prologue analysis methods: */
/* ADDIU insn (001001 rs(5) rt(5) imm(16)). */
#define INSN_IS_ADDIU(X) (((X) & 0xfc000000) == 0x24000000)
#define ADDIU_REG_SRC(X) (((X) & 0x03e00000) >> 21)
#define ADDIU_REG_TGT(X) (((X) & 0x001f0000) >> 16)
#define ADDIU_IMMEDIATE(X) ((signed short) ((X) & 0x0000ffff))
/* "MOVE" (OR) insn (000000 rs(5) rt(5) rd(5) 00000 100101). */
#define INSN_IS_MOVE(X) (((X) & 0xffe007ff) == 0x00000025)
#define MOVE_REG_SRC(X) (((X) & 0x001f0000) >> 16)
#define MOVE_REG_TGT(X) (((X) & 0x0000f800) >> 11)
/* STORE WORD insn (101011 rs(5) rt(5) offset(16)). */
#define INSN_IS_STORE_WORD(X) (((X) & 0xfc000000) == 0xac000000)
#define SW_REG_INDEX(X) (((X) & 0x03e00000) >> 21)
#define SW_REG_SRC(X) (((X) & 0x001f0000) >> 16)
#define SW_OFFSET(X) ((signed short) ((X) & 0x0000ffff))
/* Function: find_last_line_symbol
Given an address range, first find a line symbol corresponding to
the starting address. Then find the last line symbol within the
range that has a line number less than or equal to the first line.
For optimized code with code motion, this finds the last address
for the lowest-numbered line within the address range. */
static struct symtab_and_line
find_last_line_symbol (CORE_ADDR start, CORE_ADDR end, int notcurrent)
{
struct symtab_and_line sal = find_pc_line (start, notcurrent);
struct symtab_and_line best_sal = sal;
if (sal.pc == 0 || sal.line == 0 || sal.end == 0)
return sal;
do
{
if (sal.line && sal.line <= best_sal.line)
best_sal = sal;
sal = find_pc_line (sal.end, notcurrent);
}
while (sal.pc && sal.pc < end);
return best_sal;
}
/* Function: scan_prologue
Decode the instructions within the given address range.
Decide when we must have reached the end of the function prologue.
If a frame_info pointer is provided, fill in its prologue information.
Returns the address of the first instruction after the prologue. */
static CORE_ADDR
iq2000_scan_prologue (struct gdbarch *gdbarch,
CORE_ADDR scan_start,
CORE_ADDR scan_end,
struct frame_info *fi,
struct iq2000_frame_cache *cache)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct symtab_and_line sal;
CORE_ADDR pc;
CORE_ADDR loop_end;
int found_store_lr = 0;
int found_decr_sp = 0;
int srcreg;
int tgtreg;
signed short offset;
if (scan_end == (CORE_ADDR) 0)
{
loop_end = scan_start + 100;
sal.end = sal.pc = 0;
}
else
{
loop_end = scan_end;
if (fi)
sal = find_last_line_symbol (scan_start, scan_end, 0);
}
/* Saved registers:
We first have to save the saved register's offset, and
only later do we compute its actual address. Since the
offset can be zero, we must first initialize all the
saved regs to minus one (so we can later distinguish
between one that's not saved, and one that's saved at zero). */
for (srcreg = 0; srcreg < E_NUM_REGS; srcreg ++)
cache->saved_regs[srcreg] = -1;
cache->using_fp = 0;
cache->framesize = 0;
for (pc = scan_start; pc < loop_end; pc += 4)
{
LONGEST insn = read_memory_unsigned_integer (pc, 4, byte_order);
/* Skip any instructions writing to (sp) or decrementing the
SP. */
if ((insn & 0xffe00000) == 0xac200000)
{
/* sw using SP/%1 as base. */
/* LEGACY -- from assembly-only port. */
tgtreg = ((insn >> 16) & 0x1f);
if (tgtreg >= 0 && tgtreg < E_NUM_REGS)
cache->saved_regs[tgtreg] = -((signed short) (insn & 0xffff));
if (tgtreg == E_LR_REGNUM)
found_store_lr = 1;
continue;
}
if ((insn & 0xffff8000) == 0x20218000)
{
/* addi %1, %1, -N == addi %sp, %sp, -N */
/* LEGACY -- from assembly-only port */
found_decr_sp = 1;
cache->framesize = -((signed short) (insn & 0xffff));
continue;
}
if (INSN_IS_ADDIU (insn))
{
srcreg = ADDIU_REG_SRC (insn);
tgtreg = ADDIU_REG_TGT (insn);
offset = ADDIU_IMMEDIATE (insn);
if (srcreg == E_SP_REGNUM && tgtreg == E_SP_REGNUM)
cache->framesize = -offset;
continue;
}
if (INSN_IS_STORE_WORD (insn))
{
srcreg = SW_REG_SRC (insn);
tgtreg = SW_REG_INDEX (insn);
offset = SW_OFFSET (insn);
if (tgtreg == E_SP_REGNUM || tgtreg == E_FP_REGNUM)
{
/* "push" to stack (via SP or FP reg) */
if (cache->saved_regs[srcreg] == -1) /* Don't save twice. */
cache->saved_regs[srcreg] = offset;
continue;
}
}
if (INSN_IS_MOVE (insn))
{
srcreg = MOVE_REG_SRC (insn);
tgtreg = MOVE_REG_TGT (insn);
if (srcreg == E_SP_REGNUM && tgtreg == E_FP_REGNUM)
{
/* Copy sp to fp. */
cache->using_fp = 1;
continue;
}
}
/* Unknown instruction encountered in frame. Bail out?
1) If we have a subsequent line symbol, we can keep going.
2) If not, we need to bail out and quit scanning instructions. */
if (fi && sal.end && (pc < sal.end)) /* Keep scanning. */
continue;
else /* bail */
break;
}
return pc;
}
static void
iq2000_init_frame_cache (struct iq2000_frame_cache *cache)
{
int i;
cache->base = 0;
cache->framesize = 0;
cache->using_fp = 0;
cache->saved_sp = 0;
for (i = 0; i < E_NUM_REGS; i++)
cache->saved_regs[i] = -1;
}
/* Function: iq2000_skip_prologue
If the input address is in a function prologue,
returns the address of the end of the prologue;
else returns the input address.
Note: the input address is likely to be the function start,
since this function is mainly used for advancing a breakpoint
to the first line, or stepping to the first line when we have
stepped into a function call. */
static CORE_ADDR
iq2000_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
CORE_ADDR func_addr = 0 , func_end = 0;
if (find_pc_partial_function (pc, NULL, & func_addr, & func_end))
{
struct symtab_and_line sal;
struct iq2000_frame_cache cache;
/* Found a function. */
sal = find_pc_line (func_addr, 0);
if (sal.end && sal.end < func_end)
/* Found a line number, use it as end of prologue. */
return sal.end;
/* No useable line symbol. Use prologue parsing method. */
iq2000_init_frame_cache (&cache);
return iq2000_scan_prologue (gdbarch, func_addr, func_end, NULL, &cache);
}
/* No function symbol -- just return the PC. */
return (CORE_ADDR) pc;
}
static struct iq2000_frame_cache *
iq2000_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct iq2000_frame_cache *cache;
CORE_ADDR current_pc;
int i;
if (*this_cache)
return *this_cache;
cache = FRAME_OBSTACK_ZALLOC (struct iq2000_frame_cache);
iq2000_init_frame_cache (cache);
*this_cache = cache;
cache->base = get_frame_register_unsigned (this_frame, E_FP_REGNUM);
//if (cache->base == 0)
//return cache;
current_pc = get_frame_pc (this_frame);
find_pc_partial_function (current_pc, NULL, &cache->pc, NULL);
if (cache->pc != 0)
iq2000_scan_prologue (gdbarch, cache->pc, current_pc, this_frame, cache);
if (!cache->using_fp)
cache->base = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
cache->saved_sp = cache->base + cache->framesize;
for (i = 0; i < E_NUM_REGS; i++)
if (cache->saved_regs[i] != -1)
cache->saved_regs[i] += cache->base;
return cache;
}
static struct value *
iq2000_frame_prev_register (struct frame_info *this_frame, void **this_cache,
int regnum)
{
struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame, this_cache);
if (regnum == E_SP_REGNUM && cache->saved_sp)
return frame_unwind_got_constant (this_frame, regnum, cache->saved_sp);
if (regnum == E_PC_REGNUM)
regnum = E_LR_REGNUM;
if (regnum < E_NUM_REGS && cache->saved_regs[regnum] != -1)
return frame_unwind_got_memory (this_frame, regnum,
cache->saved_regs[regnum]);
return frame_unwind_got_register (this_frame, regnum, regnum);
}
static void
iq2000_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame, this_cache);
/* This marks the outermost frame. */
if (cache->base == 0)
return;
*this_id = frame_id_build (cache->saved_sp, cache->pc);
}
static const struct frame_unwind iq2000_frame_unwind = {
NORMAL_FRAME,
iq2000_frame_this_id,
iq2000_frame_prev_register,
NULL,
default_frame_sniffer
};
static CORE_ADDR
iq2000_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
return frame_unwind_register_unsigned (next_frame, E_SP_REGNUM);
}
static CORE_ADDR
iq2000_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
return frame_unwind_register_unsigned (next_frame, E_PC_REGNUM);
}
static struct frame_id
iq2000_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
{
CORE_ADDR sp = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
return frame_id_build (sp, get_frame_pc (this_frame));
}
static CORE_ADDR
iq2000_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame, this_cache);
return cache->base;
}
static const struct frame_base iq2000_frame_base = {
&iq2000_frame_unwind,
iq2000_frame_base_address,
iq2000_frame_base_address,
iq2000_frame_base_address
};
static const unsigned char *
iq2000_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
int *lenptr)
{
static const unsigned char big_breakpoint[] = { 0x00, 0x00, 0x00, 0x0d };
static const unsigned char little_breakpoint[] = { 0x0d, 0x00, 0x00, 0x00 };
if ((*pcptr & 3) != 0)
error ("breakpoint_from_pc: invalid breakpoint address 0x%lx",
(long) *pcptr);
*lenptr = 4;
return (gdbarch_byte_order (gdbarch)
== BFD_ENDIAN_BIG) ? big_breakpoint : little_breakpoint;
}
/* Target function return value methods: */
/* Function: store_return_value
Copy the function return value from VALBUF into the
proper location for a function return. */
static void
iq2000_store_return_value (struct type *type, struct regcache *regcache,
const void *valbuf)
{
int len = TYPE_LENGTH (type);
int regno = E_FN_RETURN_REGNUM;
while (len > 0)
{
char buf[4];
int size = len % 4 ?: 4;
memset (buf, 0, 4);
memcpy (buf + 4 - size, valbuf, size);
regcache_raw_write (regcache, regno++, buf);
len -= size;
valbuf = ((char *) valbuf) + size;
}
}
/* Function: use_struct_convention
Returns non-zero if the given struct type will be returned using
a special convention, rather than the normal function return method. */
static int
iq2000_use_struct_convention (struct type *type)
{
return ((TYPE_CODE (type) == TYPE_CODE_STRUCT)
|| (TYPE_CODE (type) == TYPE_CODE_UNION))
&& TYPE_LENGTH (type) > 8;
}
/* Function: extract_return_value
Copy the function's return value into VALBUF.
This function is called only in the context of "target function calls",
ie. when the debugger forces a function to be called in the child, and
when the debugger forces a function to return prematurely via the
"return" command. */
static void
iq2000_extract_return_value (struct type *type, struct regcache *regcache,
void *valbuf)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* If the function's return value is 8 bytes or less, it is
returned in a register, and if larger than 8 bytes, it is
returned in a stack location which is pointed to by the same
register. */
int len = TYPE_LENGTH (type);
if (len <= (2 * 4))
{
int regno = E_FN_RETURN_REGNUM;
/* Return values of <= 8 bytes are returned in
FN_RETURN_REGNUM. */
while (len > 0)
{
ULONGEST tmp;
int size = len % 4 ?: 4;
/* By using store_unsigned_integer we avoid having to
do anything special for small big-endian values. */
regcache_cooked_read_unsigned (regcache, regno++, &tmp);
store_unsigned_integer (valbuf, size, byte_order, tmp);
len -= size;
valbuf = ((char *) valbuf) + size;
}
}
else
{
/* Return values > 8 bytes are returned in memory,
pointed to by FN_RETURN_REGNUM. */
ULONGEST return_buffer;
regcache_cooked_read_unsigned (regcache, E_FN_RETURN_REGNUM,
&return_buffer);
read_memory (return_buffer, valbuf, TYPE_LENGTH (type));
}
}
static enum return_value_convention
iq2000_return_value (struct gdbarch *gdbarch, struct type *func_type,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
if (iq2000_use_struct_convention (type))
return RETURN_VALUE_STRUCT_CONVENTION;
if (writebuf)
iq2000_store_return_value (type, regcache, writebuf);
else if (readbuf)
iq2000_extract_return_value (type, regcache, readbuf);
return RETURN_VALUE_REGISTER_CONVENTION;
}
/* Function: register_virtual_type
Returns the default type for register N. */
static struct type *
iq2000_register_type (struct gdbarch *gdbarch, int regnum)
{
return builtin_type (gdbarch)->builtin_int32;
}
static CORE_ADDR
iq2000_frame_align (struct gdbarch *ignore, CORE_ADDR sp)
{
/* This is the same frame alignment used by gcc. */
return ((sp + 7) & ~7);
}
/* Convenience function to check 8-byte types for being a scalar type
or a struct with only one long long or double member. */
static int
iq2000_pass_8bytetype_by_address (struct type *type)
{
struct type *ftype;
/* Skip typedefs. */
while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
type = TYPE_TARGET_TYPE (type);
/* Non-struct and non-union types are always passed by value. */
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
&& TYPE_CODE (type) != TYPE_CODE_UNION)
return 0;
/* Structs with more than 1 field are always passed by address. */
if (TYPE_NFIELDS (type) != 1)
return 1;
/* Get field type. */
ftype = (TYPE_FIELDS (type))[0].type;
/* The field type must have size 8, otherwise pass by address. */
if (TYPE_LENGTH (ftype) != 8)
return 1;
/* Skip typedefs of field type. */
while (TYPE_CODE (ftype) == TYPE_CODE_TYPEDEF)
ftype = TYPE_TARGET_TYPE (ftype);
/* If field is int or float, pass by value. */
if (TYPE_CODE (ftype) == TYPE_CODE_FLT
|| TYPE_CODE (ftype) == TYPE_CODE_INT)
return 0;
/* Everything else, pass by address. */
return 1;
}
static CORE_ADDR
iq2000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr,
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
const bfd_byte *val;
bfd_byte buf[4];
struct type *type;
int i, argreg, typelen, slacklen;
int stackspace = 0;
/* Used to copy struct arguments into the stack. */
CORE_ADDR struct_ptr;
/* First determine how much stack space we will need. */
for (i = 0, argreg = E_1ST_ARGREG + (struct_return != 0); i < nargs; i++)
{
type = value_type (args[i]);
typelen = TYPE_LENGTH (type);
if (typelen <= 4)
{
/* Scalars of up to 4 bytes,
structs of up to 4 bytes, and
pointers. */
if (argreg <= E_LAST_ARGREG)
argreg++;
else
stackspace += 4;
}
else if (typelen == 8 && !iq2000_pass_8bytetype_by_address (type))
{
/* long long,
double, and possibly
structs with a single field of long long or double. */
if (argreg <= E_LAST_ARGREG - 1)
{
/* 8-byte arg goes into a register pair
(must start with an even-numbered reg) */
if (((argreg - E_1ST_ARGREG) % 2) != 0)
argreg ++;
argreg += 2;
}
else
{
argreg = E_LAST_ARGREG + 1; /* no more argregs. */
/* 8-byte arg goes on stack, must be 8-byte aligned. */
stackspace = ((stackspace + 7) & ~7);
stackspace += 8;
}
}
else
{
/* Structs are passed as pointer to a copy of the struct.
So we need room on the stack for a copy of the struct
plus for the argument pointer. */
if (argreg <= E_LAST_ARGREG)
argreg++;
else
stackspace += 4;
/* Care for 8-byte alignment of structs saved on stack. */
stackspace += ((typelen + 7) & ~7);
}
}
/* Now copy params, in ascending order, into their assigned location
(either in a register or on the stack). */
sp -= (sp % 8); /* align */
struct_ptr = sp;
sp -= stackspace;
sp -= (sp % 8); /* align again */
stackspace = 0;
argreg = E_1ST_ARGREG;
if (struct_return)
{
/* A function that returns a struct will consume one argreg to do so.
*/
regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
}
for (i = 0; i < nargs; i++)
{
type = value_type (args[i]);
typelen = TYPE_LENGTH (type);
val = value_contents (args[i]);
if (typelen <= 4)
{
/* Char, short, int, float, pointer, and structs <= four bytes. */
slacklen = (4 - (typelen % 4)) % 4;
memset (buf, 0, sizeof (buf));
memcpy (buf + slacklen, val, typelen);
if (argreg <= E_LAST_ARGREG)
{
/* Passed in a register. */
regcache_raw_write (regcache, argreg++, buf);
}
else
{
/* Passed on the stack. */
write_memory (sp + stackspace, buf, 4);
stackspace += 4;
}
}
else if (typelen == 8 && !iq2000_pass_8bytetype_by_address (type))
{
/* (long long), (double), or struct consisting of
a single (long long) or (double). */
if (argreg <= E_LAST_ARGREG - 1)
{
/* 8-byte arg goes into a register pair
(must start with an even-numbered reg) */
if (((argreg - E_1ST_ARGREG) % 2) != 0)
argreg++;
regcache_raw_write (regcache, argreg++, val);
regcache_raw_write (regcache, argreg++, val + 4);
}
else
{
/* 8-byte arg goes on stack, must be 8-byte aligned. */
argreg = E_LAST_ARGREG + 1; /* no more argregs. */
stackspace = ((stackspace + 7) & ~7);
write_memory (sp + stackspace, val, typelen);
stackspace += 8;
}
}
else
{
/* Store struct beginning at the upper end of the previously
computed stack space. Then store the address of the struct
using the usual rules for a 4 byte value. */
struct_ptr -= ((typelen + 7) & ~7);
write_memory (struct_ptr, val, typelen);
if (argreg <= E_LAST_ARGREG)
regcache_cooked_write_unsigned (regcache, argreg++, struct_ptr);
else
{
store_unsigned_integer (buf, 4, byte_order, struct_ptr);
write_memory (sp + stackspace, buf, 4);
stackspace += 4;
}
}
}
/* Store return address. */
regcache_cooked_write_unsigned (regcache, E_LR_REGNUM, bp_addr);
/* Update stack pointer. */
regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
/* And that should do it. Return the new stack pointer. */
return sp;
}
/* Function: gdbarch_init
Initializer function for the iq2000 gdbarch vector.
Called by gdbarch. Sets up the gdbarch vector(s) for this target. */
static struct gdbarch *
iq2000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
/* Look up list for candidates - only one. */
arches = gdbarch_list_lookup_by_info (arches, &info);
if (arches != NULL)
return arches->gdbarch;
gdbarch = gdbarch_alloc (&info, NULL);
set_gdbarch_num_regs (gdbarch, E_NUM_REGS);
set_gdbarch_num_pseudo_regs (gdbarch, 0);
set_gdbarch_sp_regnum (gdbarch, E_SP_REGNUM);
set_gdbarch_pc_regnum (gdbarch, E_PC_REGNUM);
set_gdbarch_register_name (gdbarch, iq2000_register_name);
set_gdbarch_address_to_pointer (gdbarch, iq2000_address_to_pointer);
set_gdbarch_pointer_to_address (gdbarch, iq2000_pointer_to_address);
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_int_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
set_gdbarch_float_format (gdbarch, floatformats_ieee_single);
set_gdbarch_double_format (gdbarch, floatformats_ieee_double);
set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
set_gdbarch_return_value (gdbarch, iq2000_return_value);
set_gdbarch_breakpoint_from_pc (gdbarch, iq2000_breakpoint_from_pc);
set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_skip_prologue (gdbarch, iq2000_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_print_insn (gdbarch, print_insn_iq2000);
set_gdbarch_register_type (gdbarch, iq2000_register_type);
set_gdbarch_frame_align (gdbarch, iq2000_frame_align);
set_gdbarch_unwind_sp (gdbarch, iq2000_unwind_sp);
set_gdbarch_unwind_pc (gdbarch, iq2000_unwind_pc);
set_gdbarch_dummy_id (gdbarch, iq2000_dummy_id);
frame_base_set_default (gdbarch, &iq2000_frame_base);
set_gdbarch_push_dummy_call (gdbarch, iq2000_push_dummy_call);
gdbarch_init_osabi (info, gdbarch);
dwarf2_append_unwinders (gdbarch);
frame_unwind_append_unwinder (gdbarch, &iq2000_frame_unwind);
return gdbarch;
}
/* Function: _initialize_iq2000_tdep
Initializer function for the iq2000 module.
Called by gdb at start-up. */
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_iq2000_tdep;
void
_initialize_iq2000_tdep (void)
{
register_gdbarch_init (bfd_arch_iq2000, iq2000_gdbarch_init);
}