2000-12-03 00:55:37 +08:00
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/* Target-dependent code for Motorola 68HC11 & 68HC12
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2004-01-18 06:45:44 +08:00
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2007-01-10 01:59:20 +08:00
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Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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Free Software Foundation, Inc.
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2004-01-18 06:45:44 +08:00
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2002-08-13 19:03:42 +08:00
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Contributed by Stephane Carrez, stcarrez@nerim.fr
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2000-07-27 15:18:32 +08:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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2005-12-18 06:34:03 +08:00
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Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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2000-07-27 15:18:32 +08:00
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2000-08-26 21:36:25 +08:00
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#include "defs.h"
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#include "frame.h"
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2003-07-28 05:24:41 +08:00
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#include "frame-unwind.h"
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#include "frame-base.h"
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#include "dwarf2-frame.h"
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#include "trad-frame.h"
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2000-08-26 21:36:25 +08:00
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "gdbcmd.h"
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#include "gdbcore.h"
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#include "gdb_string.h"
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#include "value.h"
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#include "inferior.h"
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#include "dis-asm.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "arch-utils.h"
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2001-03-01 09:39:22 +08:00
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#include "regcache.h"
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2003-02-22 23:59:49 +08:00
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#include "reggroups.h"
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2000-07-27 15:18:32 +08:00
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2000-08-26 21:36:25 +08:00
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#include "target.h"
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#include "opcode/m68hc11.h"
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2002-08-13 21:10:42 +08:00
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#include "elf/m68hc11.h"
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#include "elf-bfd.h"
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2000-07-27 15:18:32 +08:00
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2002-08-14 00:40:46 +08:00
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/* Macros for setting and testing a bit in a minimal symbol.
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For 68HC11/68HC12 we have two flags that tell which return
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type the function is using. This is used for prologue and frame
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analysis to compute correct stack frame layout.
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The MSB of the minimal symbol's "info" field is used for this purpose.
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MSYMBOL_SET_RTC Actually sets the "RTC" bit.
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MSYMBOL_SET_RTI Actually sets the "RTI" bit.
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MSYMBOL_IS_RTC Tests the "RTC" bit in a minimal symbol.
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2003-11-12 04:04:52 +08:00
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MSYMBOL_IS_RTI Tests the "RTC" bit in a minimal symbol. */
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2002-08-14 00:40:46 +08:00
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#define MSYMBOL_SET_RTC(msym) \
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MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) \
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| 0x80000000)
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#define MSYMBOL_SET_RTI(msym) \
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MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) \
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| 0x40000000)
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#define MSYMBOL_IS_RTC(msym) \
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(((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
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#define MSYMBOL_IS_RTI(msym) \
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(((long) MSYMBOL_INFO (msym) & 0x40000000) != 0)
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enum insn_return_kind {
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RETURN_RTS,
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RETURN_RTC,
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RETURN_RTI
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};
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2007-05-13 20:48:40 +08:00
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/* Register numbers of various important registers. */
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2000-07-27 15:18:32 +08:00
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2000-08-26 21:36:25 +08:00
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#define HARD_X_REGNUM 0
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#define HARD_D_REGNUM 1
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#define HARD_Y_REGNUM 2
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#define HARD_SP_REGNUM 3
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#define HARD_PC_REGNUM 4
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#define HARD_A_REGNUM 5
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#define HARD_B_REGNUM 6
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#define HARD_CCR_REGNUM 7
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2002-08-14 00:19:22 +08:00
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/* 68HC12 page number register.
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Note: to keep a compatibility with gcc register naming, we must
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not have to rename FP and other soft registers. The page register
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2007-05-31 Markus Deuling <deuling@de.ibm.com>
* gdbarch.sh (NUM_REGS): Replace by gdbarch_num_regs.
* i386-tdep.c (i386_dbx_reg_to_regnum)
(i386_svr4_reg_to_regnum): Likewise.
* inf-ptrace.c (inf_ptrace_fetch_registers)
(inf_ptrace_store_registers): Likewise.
* corelow.c (get_core_registers): Likewise.
* i386-linux-nat.c (supply_gregset, fill_gregset)
(i386_linux_fetch_inferior_registers)
(i386_linux_store_inferior_registers): Likewise.
* remote.c (init_remote_state,packet_reg_from_regnum)
(packet_reg_from_pnum,process_g_packet,remote_fetch_registers)
(remote_prepare_to_store,store_registers_using_G)
(remote_store_registers,remote_arch_state): Likewise.
* tracepoint.c (encode_actions): Likewise.
* mi/mi-main.c (mi_cmd_data_list_register_names)
(mi_cmd_data_list_changed_registers,mi_cmd_data_list_register_values)
(mi_cmd_data_write_register_values): Likewise.
* tui/tui-regs.c (tui_show_register_group)
(tui_show_register_group): Likewise.
* xtensa-tdep.h (FP_ALIAS): Likewise.
* xtensa-tdep.c (xtensa_register_name,xtensa_register_type)
(xtensa_reg_to_regnum,xtensa_pseudo_register_read)
(xtensa_pseudo_register_write,xtensa_register_reggroup_p): Likewise.
* win32-nat.c (do_win32_fetch_inferior_registers)
(do_win32_store_inferior_registers,fetch_elf_core_registers
* user-regs.h: Likewise (comment).
* user-regs.c (user_reg, user_reg_map_name_to_regnum): Likewise.
* trad-frame.c (trad_frame_alloc_saved_regs): Likewise.
* target-descriptions.h: Likewise (comment).
* target-descriptions.c (tdesc_use_registers): Likewise (comment).
* target.c (debug_print_register): Likewise.
* stack.c (frame_info): Likewise.
* stabsread.c (define_symbol): Likewise.
* sh64-tdep.c (sh64_do_pseudo_register,sh64_print_register)
(sh64_media_print_registers_info)
(sh64_compact_print_registers_info): Likewise.
* rs6000-tdep.c (rs6000_register_sim_regno): Likewise.
* rs6000-nat.c (fetch_register,store_register): Likewise.
* remote-sim.c (one2one_register_sim_regno,gdbsim_fetch_register)
(gdbsim_fetch_register,gdbsim_store_register): Likewise.
* remote-mips.c (mips_fetch_registers,mips_store_registers): Likewise.
* remote-m32r-sdi.c (m32r_fetch_registers)
(m32r_store_registers): Likewise.
* reggroups.c (default_register_reggroup_p): Likewise.
* regcache.c (init_regcache_descr,register_size,regcache,regcache_save)
(regcache_restore,regcache_dump): Likewise.
* monitor.c (monitor_fetch_registers,monitor_store_registers): Likewise.
* mips-tdep.c (mips_xfer_register,mips_register_name)
(mips_register_reggroup_p,mips_pseudo_register_read)
(mips_pseudo_register_write,mips_convert_register_p,mips_register_type)
(mips_unwind_pc,mips_unwind_sp,mips_unwind_dummy_id,set_reg_offset)
(mips16_scan_prologue,mips_insn16_frame_cache,reset_saved_regs)
(mips32_scan_prologue,mips_insn32_frame_cache,read_next_frame_reg)
(mips_n32n64_return_value,mips_o32_return_value,mips_o64_return_value)
(print_gp_register_row,mips_print_registers_info)
(mips_stab_reg_to_regnum,mips_dwarf_dwarf2_ecoff_reg_to_regnum)
(mips_register_sim_regno): Likewise.
* mips-linux-tdep.c (mips_linux_o32_sigframe_init)
(mips_linux_n32n64_sigframe_init): Likewise.
* mips-linux-nat.c (mips_linux_register_addr)
(mips64_linux_register_addr): Likewise.
* findvar.c (value_of_register): Likewise.
* infcmd.c (default_print_registers_info,registers_info)
(print_vector_info,print_float_info): Likewise.
* mips64obsd-tdep.c (mips64obsd_sigframe_init): Likewise.
* inf-child.c (inf_child_fetch_inferior_registers): Likewise.
* m68k-tdep.c (m68k_dwarf_reg_to_regnum): Likewise.
* m68hc11-tdep.c (m68hc11_frame_unwind_cache(: Likewise.
* m32r-tdep.c (m32r_frame_unwind_cache): Likewise.
* ia64-linux-nat.c (ia64_register_addr,ia64_cannot_fetch_register)
(ia64_cannot_store_register,ia64_linux_fetch_registers)
(ia64_linux_store_registers): Likewise.
* hpux-thread.c (hpux_thread_fetch_registers)
(hpux_thread_store_registers): Likewise.
* h8300-tdep.c (E_PSEUDO_CCR_REGNUM,E_PSEUDO_EXR_REGNUM)
(h8300_init_frame_cache,h8300_frame_cache,h8300_frame_prev_register)
(h8300_register_type): Likewise.
* dwarf2-frame.c (dwarf2_frame_cache)
(dwarf2_frame_state_alloc_regs): Likewise.
* cris-tdep.c (cris_register_size,cris_cannot_fetch_register)
(cris_cannot_store_register,crisv32_cannot_fetch_register)
(crisv32_cannot_store_register,cris_register_name): Likewise.
* avr-tdep.c (avr_frame_unwind_cache): Likewise.
* arch-utils.c (legacy_register_sim_regno)
(legacy_virtual_frame_pointer): Likewise.
* arm-tdep.c (arm_make_prologue_cache,arm_register_sim_regno):Likewise.
* arm-tdep.h: Likewise (comment).
* frv-tdep.c (frv_register_sim_regno): Likewise.
* m68klinux-nat.c (old_fetch_inferior_registers)
(old_store_inferior_registers): Likewise.
* m32c-tdep.c (m32c_virtual_frame_pointer): Likewise.
* irix5-nat.c (fetch_core_registers): Likewise.
* hppa-tdep.c (hppa_frame_cache): Likewise.
* hppa-linux-nat.c (hppa_linux_register_addr)
(hppa_linux_fetch_inferior_registers)
(hppa_linux_store_inferior_registers): Likewise.
* hppa-hpux-nat.c (hppa_hpux_fetch_inferior_registers)
(hppa_hpux_store_inferior_registers): Likewise.
* amd64-nat.c (amd64_native_gregset_reg_offset)
(amd64_supply_native_gregset,amd64_collect_native_gregset): Likewise.
* dbug-rom.c (dbug_regname): Likewise.
* m68hc11-tdep.c (m68hc11_frame_unwind_cache)
(HARD_PAGE_REGNUM (comment)): Likewise.
* gdbarch.sh (NUM_PSEUDO_REGS): Replace by gdbarch_num_pseudo_regs.
* i386-tdep.c (i386_dbx_reg_to_regnum)
(i386_svr4_reg_to_regnum): Likewise.
* mi/mi-main.c (mi_cmd_data_list_register_names)
(mi_cmd_data_list_changed_registers,mi_cmd_data_list_register_values)
(mi_cmd_data_write_register_values): Likewise.
* gdbarch.c, gdbarch.h: Regenerate.
* tui/tui-regs.c (tui_show_register_group): Likewise.
* xtensa-tdep.h (FP_ALIAS): Likewise.
* user-regs.h: Likewise (comment).
* user-regs.c (user_reg, user_reg_map_name_to_regnum): Likewise.
* trad-frame.c (trad_frame_alloc_saved_regs): Likewise.
* target-descriptions.h: Likewise (comment).
* target.c (debug_print_register): Likewise.
* stack.c (frame_info): Likewise.
* stabsread.c (define_symbol): Likewise.
* sh64-tdep.c (sh64_print_register,sh64_media_print_registers_info)
(sh64_compact_print_registers_info): Likewise.
* rs6000-tdep.c (rs6000_register_sim_regno): Likewise.
* regcache.c (init_regcache_descr,register_size,regcache,regcache_save
(regcache_restore,regcache_dump): Likewise.
* mips-tdep.c (print_gp_register_row,mips_print_registers_info)
(mips_dwarf_dwarf2_ecoff_reg_to_regnum)
(mips_stab_reg_to_regnum): Likewise.
* findvar.c (value_of_register): Likewise.
* infcmd.c (default_print_registers_info,registers_info)
(print_vector_info,print_float_info): Likewise.
* m68k-tdep.c (m68k_dwarf_reg_to_regnum): Likewise.
* h8300-tdep.c (h8300_register_type): Likewise.
* dwarf2-frame.c (dwarf2_frame_cache): Likewise.
* frame.h (SIZEOF_FRAME_SAVED_REGS): Likewise.
* xtensa-tdep.c (xtensa_register_type,xtensa_reg_to_regnum)
(xtensa_pseudo_register_read,xtensa_pseudo_register_write): Likewise.
* parse.c: Remove comment.
* gdbarch.c, gdbarch.h: Regenerate
2007-06-01 01:32:22 +08:00
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is a real hard register and must therefore be counted by gdbarch_num_regs.
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2002-08-14 00:19:22 +08:00
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For this it has the same number as Z register (which is not used). */
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#define HARD_PAGE_REGNUM 8
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#define M68HC11_LAST_HARD_REG (HARD_PAGE_REGNUM)
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2000-08-26 21:36:25 +08:00
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/* Z is replaced by X or Y by gcc during machine reorg.
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??? There is no way to get it and even know whether
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it's in X or Y or in ZS. */
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#define SOFT_Z_REGNUM 8
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/* Soft registers. These registers are special. There are treated
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like normal hard registers by gcc and gdb (ie, within dwarf2 info).
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They are physically located in memory. */
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#define SOFT_FP_REGNUM 9
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#define SOFT_TMP_REGNUM 10
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#define SOFT_ZS_REGNUM 11
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#define SOFT_XY_REGNUM 12
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2000-12-03 01:07:04 +08:00
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#define SOFT_UNUSED_REGNUM 13
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#define SOFT_D1_REGNUM 14
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2000-08-26 21:36:25 +08:00
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#define SOFT_D32_REGNUM (SOFT_D1_REGNUM+31)
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#define M68HC11_MAX_SOFT_REGS 32
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#define M68HC11_NUM_REGS (8)
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#define M68HC11_NUM_PSEUDO_REGS (M68HC11_MAX_SOFT_REGS+5)
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#define M68HC11_ALL_REGS (M68HC11_NUM_REGS+M68HC11_NUM_PSEUDO_REGS)
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#define M68HC11_REG_SIZE (2)
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2002-08-14 01:24:50 +08:00
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#define M68HC12_NUM_REGS (9)
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#define M68HC12_NUM_PSEUDO_REGS ((M68HC11_MAX_SOFT_REGS+5)+1-1)
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#define M68HC12_HARD_PC_REGNUM (SOFT_D32_REGNUM+1)
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2000-12-03 00:55:37 +08:00
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struct insn_sequence;
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2000-08-26 21:36:25 +08:00
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struct gdbarch_tdep
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{
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2000-11-25 04:59:42 +08:00
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/* Stack pointer correction value. For 68hc11, the stack pointer points
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to the next push location. An offset of 1 must be applied to obtain
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the address where the last value is saved. For 68hc12, the stack
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pointer points to the last value pushed. No offset is necessary. */
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int stack_correction;
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2000-12-03 00:55:37 +08:00
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/* Description of instructions in the prologue. */
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struct insn_sequence *prologue;
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2002-08-13 21:10:42 +08:00
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2002-08-14 00:40:46 +08:00
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/* True if the page memory bank register is available
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and must be used. */
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int use_page_register;
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2002-08-13 21:10:42 +08:00
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/* ELF flags for ABI. */
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int elf_flags;
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2000-08-26 21:36:25 +08:00
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};
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2000-11-25 04:59:42 +08:00
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#define M6811_TDEP gdbarch_tdep (current_gdbarch)
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#define STACK_CORRECTION (M6811_TDEP->stack_correction)
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2002-08-14 00:40:46 +08:00
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#define USE_PAGE_REGISTER (M6811_TDEP->use_page_register)
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2000-11-25 04:59:42 +08:00
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2003-07-28 05:24:41 +08:00
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struct m68hc11_unwind_cache
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{
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/* The previous frame's inner most stack address. Used as this
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frame ID's stack_addr. */
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CORE_ADDR prev_sp;
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/* The frame's base, optionally used by the high-level debug info. */
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CORE_ADDR base;
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CORE_ADDR pc;
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int size;
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int prologue_type;
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CORE_ADDR return_pc;
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CORE_ADDR sp_offset;
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int frameless;
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enum insn_return_kind return_kind;
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/* Table indicating the location of each and every register. */
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struct trad_frame_saved_reg *saved_regs;
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};
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2000-08-26 21:36:25 +08:00
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/* Table of registers for 68HC11. This includes the hard registers
|
|
|
|
|
and the soft registers used by GCC. */
|
|
|
|
|
static char *
|
|
|
|
|
m68hc11_register_names[] =
|
|
|
|
|
{
|
|
|
|
|
"x", "d", "y", "sp", "pc", "a", "b",
|
2002-08-14 00:19:22 +08:00
|
|
|
|
"ccr", "page", "frame","tmp", "zs", "xy", 0,
|
2000-08-26 21:36:25 +08:00
|
|
|
|
"d1", "d2", "d3", "d4", "d5", "d6", "d7",
|
|
|
|
|
"d8", "d9", "d10", "d11", "d12", "d13", "d14",
|
|
|
|
|
"d15", "d16", "d17", "d18", "d19", "d20", "d21",
|
|
|
|
|
"d22", "d23", "d24", "d25", "d26", "d27", "d28",
|
|
|
|
|
"d29", "d30", "d31", "d32"
|
|
|
|
|
};
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
struct m68hc11_soft_reg
|
|
|
|
|
{
|
|
|
|
|
const char *name;
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
};
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static struct m68hc11_soft_reg soft_regs[M68HC11_ALL_REGS];
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
#define M68HC11_FP_ADDR soft_regs[SOFT_FP_REGNUM].addr
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static int soft_min_addr;
|
|
|
|
|
static int soft_max_addr;
|
|
|
|
|
static int soft_reg_initialized = 0;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* Look in the symbol table for the address of a pseudo register
|
|
|
|
|
in memory. If we don't find it, pretend the register is not used
|
|
|
|
|
and not available. */
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_get_register_info (struct m68hc11_soft_reg *reg, const char *name)
|
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *msymbol;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
msymbol = lookup_minimal_symbol (name, NULL, NULL);
|
|
|
|
|
if (msymbol)
|
|
|
|
|
{
|
|
|
|
|
reg->addr = SYMBOL_VALUE_ADDRESS (msymbol);
|
|
|
|
|
reg->name = xstrdup (name);
|
|
|
|
|
|
|
|
|
|
/* Keep track of the address range for soft registers. */
|
|
|
|
|
if (reg->addr < (CORE_ADDR) soft_min_addr)
|
|
|
|
|
soft_min_addr = reg->addr;
|
|
|
|
|
if (reg->addr > (CORE_ADDR) soft_max_addr)
|
|
|
|
|
soft_max_addr = reg->addr;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
reg->name = 0;
|
|
|
|
|
reg->addr = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* Initialize the table of soft register addresses according
|
|
|
|
|
to the symbol table. */
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_initialize_register_info (void)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
if (soft_reg_initialized)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
soft_min_addr = INT_MAX;
|
|
|
|
|
soft_max_addr = 0;
|
|
|
|
|
for (i = 0; i < M68HC11_ALL_REGS; i++)
|
|
|
|
|
{
|
|
|
|
|
soft_regs[i].name = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
m68hc11_get_register_info (&soft_regs[SOFT_FP_REGNUM], "_.frame");
|
|
|
|
|
m68hc11_get_register_info (&soft_regs[SOFT_TMP_REGNUM], "_.tmp");
|
|
|
|
|
m68hc11_get_register_info (&soft_regs[SOFT_ZS_REGNUM], "_.z");
|
|
|
|
|
soft_regs[SOFT_Z_REGNUM] = soft_regs[SOFT_ZS_REGNUM];
|
|
|
|
|
m68hc11_get_register_info (&soft_regs[SOFT_XY_REGNUM], "_.xy");
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
for (i = SOFT_D1_REGNUM; i < M68HC11_MAX_SOFT_REGS; i++)
|
|
|
|
|
{
|
|
|
|
|
char buf[10];
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
sprintf (buf, "_.d%d", i - SOFT_D1_REGNUM + 1);
|
|
|
|
|
m68hc11_get_register_info (&soft_regs[i], buf);
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
if (soft_regs[SOFT_FP_REGNUM].name == 0)
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 12:06:14 +08:00
|
|
|
|
warning (_("No frame soft register found in the symbol table.\n"
|
|
|
|
|
"Stack backtrace will not work."));
|
2000-08-26 21:36:25 +08:00
|
|
|
|
soft_reg_initialized = 1;
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* Given an address in memory, return the soft register number if
|
|
|
|
|
that address corresponds to a soft register. Returns -1 if not. */
|
|
|
|
|
static int
|
|
|
|
|
m68hc11_which_soft_register (CORE_ADDR addr)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (addr < soft_min_addr || addr > soft_max_addr)
|
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
for (i = SOFT_FP_REGNUM; i < M68HC11_ALL_REGS; i++)
|
|
|
|
|
{
|
|
|
|
|
if (soft_regs[i].name && soft_regs[i].addr == addr)
|
|
|
|
|
return i;
|
|
|
|
|
}
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* Fetch a pseudo register. The 68hc11 soft registers are treated like
|
|
|
|
|
pseudo registers. They are located in memory. Translate the register
|
|
|
|
|
fetch into a memory read. */
|
2002-08-03 23:56:23 +08:00
|
|
|
|
static void
|
|
|
|
|
m68hc11_pseudo_register_read (struct gdbarch *gdbarch,
|
|
|
|
|
struct regcache *regcache,
|
2005-11-11 18:25:34 +08:00
|
|
|
|
int regno, gdb_byte *buf)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2002-08-14 01:24:50 +08:00
|
|
|
|
/* The PC is a pseudo reg only for 68HC12 with the memory bank
|
|
|
|
|
addressing mode. */
|
|
|
|
|
if (regno == M68HC12_HARD_PC_REGNUM)
|
|
|
|
|
{
|
2003-07-21 02:36:27 +08:00
|
|
|
|
ULONGEST pc;
|
2002-08-14 01:24:50 +08:00
|
|
|
|
const int regsize = TYPE_LENGTH (builtin_type_uint32);
|
|
|
|
|
|
2003-07-21 02:36:27 +08:00
|
|
|
|
regcache_cooked_read_unsigned (regcache, HARD_PC_REGNUM, &pc);
|
2002-08-14 01:24:50 +08:00
|
|
|
|
if (pc >= 0x8000 && pc < 0xc000)
|
|
|
|
|
{
|
2003-07-21 02:36:27 +08:00
|
|
|
|
ULONGEST page;
|
|
|
|
|
|
|
|
|
|
regcache_cooked_read_unsigned (regcache, HARD_PAGE_REGNUM, &page);
|
2002-08-14 01:24:50 +08:00
|
|
|
|
pc -= 0x8000;
|
|
|
|
|
pc += (page << 14);
|
|
|
|
|
pc += 0x1000000;
|
|
|
|
|
}
|
|
|
|
|
store_unsigned_integer (buf, regsize, pc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
m68hc11_initialize_register_info ();
|
|
|
|
|
|
|
|
|
|
/* Fetch a soft register: translate into a memory read. */
|
|
|
|
|
if (soft_regs[regno].name)
|
|
|
|
|
{
|
|
|
|
|
target_read_memory (soft_regs[regno].addr, buf, 2);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
memset (buf, 0, 2);
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* Store a pseudo register. Translate the register store
|
|
|
|
|
into a memory write. */
|
|
|
|
|
static void
|
2002-08-03 23:56:23 +08:00
|
|
|
|
m68hc11_pseudo_register_write (struct gdbarch *gdbarch,
|
|
|
|
|
struct regcache *regcache,
|
2005-11-11 18:25:34 +08:00
|
|
|
|
int regno, const gdb_byte *buf)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2002-08-14 01:24:50 +08:00
|
|
|
|
/* The PC is a pseudo reg only for 68HC12 with the memory bank
|
|
|
|
|
addressing mode. */
|
|
|
|
|
if (regno == M68HC12_HARD_PC_REGNUM)
|
|
|
|
|
{
|
|
|
|
|
const int regsize = TYPE_LENGTH (builtin_type_uint32);
|
|
|
|
|
char *tmp = alloca (regsize);
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
|
|
|
|
|
memcpy (tmp, buf, regsize);
|
|
|
|
|
pc = extract_unsigned_integer (tmp, regsize);
|
|
|
|
|
if (pc >= 0x1000000)
|
|
|
|
|
{
|
|
|
|
|
pc -= 0x1000000;
|
2003-07-21 02:36:27 +08:00
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_PAGE_REGNUM,
|
|
|
|
|
(pc >> 14) & 0x0ff);
|
2002-08-14 01:24:50 +08:00
|
|
|
|
pc &= 0x03fff;
|
2003-07-21 02:36:27 +08:00
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_PC_REGNUM,
|
|
|
|
|
pc + 0x8000);
|
2002-08-14 01:24:50 +08:00
|
|
|
|
}
|
|
|
|
|
else
|
2003-07-21 02:36:27 +08:00
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_PC_REGNUM, pc);
|
2002-08-14 01:24:50 +08:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
m68hc11_initialize_register_info ();
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* Store a soft register: translate into a memory write. */
|
|
|
|
|
if (soft_regs[regno].name)
|
|
|
|
|
{
|
2002-08-03 23:56:23 +08:00
|
|
|
|
const int regsize = 2;
|
|
|
|
|
char *tmp = alloca (regsize);
|
|
|
|
|
memcpy (tmp, buf, regsize);
|
|
|
|
|
target_write_memory (soft_regs[regno].addr, tmp, regsize);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2002-06-18 07:32:36 +08:00
|
|
|
|
static const char *
|
2000-08-26 21:36:25 +08:00
|
|
|
|
m68hc11_register_name (int reg_nr)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2002-08-14 01:24:50 +08:00
|
|
|
|
if (reg_nr == M68HC12_HARD_PC_REGNUM && USE_PAGE_REGISTER)
|
|
|
|
|
return "pc";
|
|
|
|
|
if (reg_nr == HARD_PC_REGNUM && USE_PAGE_REGISTER)
|
|
|
|
|
return "ppc";
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
if (reg_nr < 0)
|
|
|
|
|
return NULL;
|
|
|
|
|
if (reg_nr >= M68HC11_ALL_REGS)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
2004-03-13 22:51:55 +08:00
|
|
|
|
m68hc11_initialize_register_info ();
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* If we don't know the address of a soft register, pretend it
|
|
|
|
|
does not exist. */
|
|
|
|
|
if (reg_nr > M68HC11_LAST_HARD_REG && soft_regs[reg_nr].name == 0)
|
|
|
|
|
return NULL;
|
|
|
|
|
return m68hc11_register_names[reg_nr];
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2002-04-19 02:09:09 +08:00
|
|
|
|
static const unsigned char *
|
2000-08-26 21:36:25 +08:00
|
|
|
|
m68hc11_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static unsigned char breakpoint[] = {0x0};
|
|
|
|
|
|
|
|
|
|
*lenptr = sizeof (breakpoint);
|
|
|
|
|
return breakpoint;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
2000-12-03 00:55:37 +08:00
|
|
|
|
|
|
|
|
|
/* 68HC11 & 68HC12 prologue analysis.
|
|
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
#define MAX_CODES 12
|
|
|
|
|
|
|
|
|
|
/* 68HC11 opcodes. */
|
|
|
|
|
#undef M6811_OP_PAGE2
|
2003-02-28 05:02:17 +08:00
|
|
|
|
#define M6811_OP_PAGE2 (0x18)
|
|
|
|
|
#define M6811_OP_LDX (0xde)
|
|
|
|
|
#define M6811_OP_LDX_EXT (0xfe)
|
|
|
|
|
#define M6811_OP_PSHX (0x3c)
|
|
|
|
|
#define M6811_OP_STS (0x9f)
|
|
|
|
|
#define M6811_OP_STS_EXT (0xbf)
|
|
|
|
|
#define M6811_OP_TSX (0x30)
|
|
|
|
|
#define M6811_OP_XGDX (0x8f)
|
|
|
|
|
#define M6811_OP_ADDD (0xc3)
|
|
|
|
|
#define M6811_OP_TXS (0x35)
|
|
|
|
|
#define M6811_OP_DES (0x34)
|
2000-12-03 00:55:37 +08:00
|
|
|
|
|
|
|
|
|
/* 68HC12 opcodes. */
|
2003-02-28 05:02:17 +08:00
|
|
|
|
#define M6812_OP_PAGE2 (0x18)
|
|
|
|
|
#define M6812_OP_MOVW (0x01)
|
|
|
|
|
#define M6812_PB_PSHW (0xae)
|
|
|
|
|
#define M6812_OP_STS (0x5f)
|
|
|
|
|
#define M6812_OP_STS_EXT (0x7f)
|
|
|
|
|
#define M6812_OP_LEAS (0x1b)
|
|
|
|
|
#define M6812_OP_PSHX (0x34)
|
|
|
|
|
#define M6812_OP_PSHY (0x35)
|
2000-12-03 00:55:37 +08:00
|
|
|
|
|
|
|
|
|
/* Operand extraction. */
|
|
|
|
|
#define OP_DIRECT (0x100) /* 8-byte direct addressing. */
|
|
|
|
|
#define OP_IMM_LOW (0x200) /* Low part of 16-bit constant/address. */
|
|
|
|
|
#define OP_IMM_HIGH (0x300) /* High part of 16-bit constant/address. */
|
|
|
|
|
#define OP_PBYTE (0x400) /* 68HC12 indexed operand. */
|
|
|
|
|
|
|
|
|
|
/* Identification of the sequence. */
|
|
|
|
|
enum m6811_seq_type
|
|
|
|
|
{
|
|
|
|
|
P_LAST = 0,
|
|
|
|
|
P_SAVE_REG, /* Save a register on the stack. */
|
|
|
|
|
P_SET_FRAME, /* Setup the frame pointer. */
|
|
|
|
|
P_LOCAL_1, /* Allocate 1 byte for locals. */
|
|
|
|
|
P_LOCAL_2, /* Allocate 2 bytes for locals. */
|
|
|
|
|
P_LOCAL_N /* Allocate N bytes for locals. */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct insn_sequence {
|
|
|
|
|
enum m6811_seq_type type;
|
|
|
|
|
unsigned length;
|
|
|
|
|
unsigned short code[MAX_CODES];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Sequence of instructions in the 68HC11 function prologue. */
|
|
|
|
|
static struct insn_sequence m6811_prologue[] = {
|
|
|
|
|
/* Sequences to save a soft-register. */
|
|
|
|
|
{ P_SAVE_REG, 3, { M6811_OP_LDX, OP_DIRECT,
|
|
|
|
|
M6811_OP_PSHX } },
|
|
|
|
|
{ P_SAVE_REG, 5, { M6811_OP_PAGE2, M6811_OP_LDX, OP_DIRECT,
|
|
|
|
|
M6811_OP_PAGE2, M6811_OP_PSHX } },
|
2003-02-28 05:02:17 +08:00
|
|
|
|
{ P_SAVE_REG, 4, { M6811_OP_LDX_EXT, OP_IMM_HIGH, OP_IMM_LOW,
|
|
|
|
|
M6811_OP_PSHX } },
|
|
|
|
|
{ P_SAVE_REG, 6, { M6811_OP_PAGE2, M6811_OP_LDX_EXT, OP_IMM_HIGH, OP_IMM_LOW,
|
|
|
|
|
M6811_OP_PAGE2, M6811_OP_PSHX } },
|
2000-12-03 00:55:37 +08:00
|
|
|
|
|
|
|
|
|
/* Sequences to allocate local variables. */
|
|
|
|
|
{ P_LOCAL_N, 7, { M6811_OP_TSX,
|
|
|
|
|
M6811_OP_XGDX,
|
|
|
|
|
M6811_OP_ADDD, OP_IMM_HIGH, OP_IMM_LOW,
|
|
|
|
|
M6811_OP_XGDX,
|
|
|
|
|
M6811_OP_TXS } },
|
|
|
|
|
{ P_LOCAL_N, 11, { M6811_OP_PAGE2, M6811_OP_TSX,
|
|
|
|
|
M6811_OP_PAGE2, M6811_OP_XGDX,
|
|
|
|
|
M6811_OP_ADDD, OP_IMM_HIGH, OP_IMM_LOW,
|
|
|
|
|
M6811_OP_PAGE2, M6811_OP_XGDX,
|
|
|
|
|
M6811_OP_PAGE2, M6811_OP_TXS } },
|
|
|
|
|
{ P_LOCAL_1, 1, { M6811_OP_DES } },
|
|
|
|
|
{ P_LOCAL_2, 1, { M6811_OP_PSHX } },
|
|
|
|
|
{ P_LOCAL_2, 2, { M6811_OP_PAGE2, M6811_OP_PSHX } },
|
|
|
|
|
|
|
|
|
|
/* Initialize the frame pointer. */
|
|
|
|
|
{ P_SET_FRAME, 2, { M6811_OP_STS, OP_DIRECT } },
|
2003-02-28 05:02:17 +08:00
|
|
|
|
{ P_SET_FRAME, 3, { M6811_OP_STS_EXT, OP_IMM_HIGH, OP_IMM_LOW } },
|
2000-12-03 00:55:37 +08:00
|
|
|
|
{ P_LAST, 0, { 0 } }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Sequence of instructions in the 68HC12 function prologue. */
|
|
|
|
|
static struct insn_sequence m6812_prologue[] = {
|
|
|
|
|
{ P_SAVE_REG, 5, { M6812_OP_PAGE2, M6812_OP_MOVW, M6812_PB_PSHW,
|
|
|
|
|
OP_IMM_HIGH, OP_IMM_LOW } },
|
2003-02-28 05:02:17 +08:00
|
|
|
|
{ P_SET_FRAME, 2, { M6812_OP_STS, OP_DIRECT } },
|
|
|
|
|
{ P_SET_FRAME, 3, { M6812_OP_STS_EXT, OP_IMM_HIGH, OP_IMM_LOW } },
|
2000-12-03 00:55:37 +08:00
|
|
|
|
{ P_LOCAL_N, 2, { M6812_OP_LEAS, OP_PBYTE } },
|
2002-08-13 19:03:42 +08:00
|
|
|
|
{ P_LOCAL_2, 1, { M6812_OP_PSHX } },
|
|
|
|
|
{ P_LOCAL_2, 1, { M6812_OP_PSHY } },
|
2000-12-03 00:55:37 +08:00
|
|
|
|
{ P_LAST, 0 }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Analyze the sequence of instructions starting at the given address.
|
|
|
|
|
Returns a pointer to the sequence when it is recognized and
|
2003-07-28 04:54:17 +08:00
|
|
|
|
the optional value (constant/address) associated with it. */
|
2000-12-03 00:55:37 +08:00
|
|
|
|
static struct insn_sequence *
|
2003-07-28 04:54:17 +08:00
|
|
|
|
m68hc11_analyze_instruction (struct insn_sequence *seq, CORE_ADDR pc,
|
2000-12-03 00:55:37 +08:00
|
|
|
|
CORE_ADDR *val)
|
|
|
|
|
{
|
|
|
|
|
unsigned char buffer[MAX_CODES];
|
|
|
|
|
unsigned bufsize;
|
|
|
|
|
unsigned j;
|
|
|
|
|
CORE_ADDR cur_val;
|
|
|
|
|
short v = 0;
|
|
|
|
|
|
|
|
|
|
bufsize = 0;
|
|
|
|
|
for (; seq->type != P_LAST; seq++)
|
|
|
|
|
{
|
|
|
|
|
cur_val = 0;
|
|
|
|
|
for (j = 0; j < seq->length; j++)
|
|
|
|
|
{
|
|
|
|
|
if (bufsize < j + 1)
|
|
|
|
|
{
|
2003-07-28 04:54:17 +08:00
|
|
|
|
buffer[bufsize] = read_memory_unsigned_integer (pc + bufsize,
|
2000-12-03 00:55:37 +08:00
|
|
|
|
1);
|
|
|
|
|
bufsize++;
|
|
|
|
|
}
|
|
|
|
|
/* Continue while we match the opcode. */
|
|
|
|
|
if (seq->code[j] == buffer[j])
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if ((seq->code[j] & 0xf00) == 0)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Extract a sequence parameter (address or constant). */
|
|
|
|
|
switch (seq->code[j])
|
|
|
|
|
{
|
|
|
|
|
case OP_DIRECT:
|
|
|
|
|
cur_val = (CORE_ADDR) buffer[j];
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case OP_IMM_HIGH:
|
|
|
|
|
cur_val = cur_val & 0x0ff;
|
|
|
|
|
cur_val |= (buffer[j] << 8);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case OP_IMM_LOW:
|
|
|
|
|
cur_val &= 0x0ff00;
|
|
|
|
|
cur_val |= buffer[j];
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case OP_PBYTE:
|
|
|
|
|
if ((buffer[j] & 0xE0) == 0x80)
|
|
|
|
|
{
|
|
|
|
|
v = buffer[j] & 0x1f;
|
|
|
|
|
if (v & 0x10)
|
|
|
|
|
v |= 0xfff0;
|
|
|
|
|
}
|
|
|
|
|
else if ((buffer[j] & 0xfe) == 0xf0)
|
|
|
|
|
{
|
2003-07-28 04:54:17 +08:00
|
|
|
|
v = read_memory_unsigned_integer (pc + j + 1, 1);
|
2000-12-03 00:55:37 +08:00
|
|
|
|
if (buffer[j] & 1)
|
|
|
|
|
v |= 0xff00;
|
|
|
|
|
}
|
|
|
|
|
else if (buffer[j] == 0xf2)
|
|
|
|
|
{
|
2003-07-28 04:54:17 +08:00
|
|
|
|
v = read_memory_unsigned_integer (pc + j + 1, 2);
|
2000-12-03 00:55:37 +08:00
|
|
|
|
}
|
|
|
|
|
cur_val = v;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We have a full match. */
|
|
|
|
|
if (j == seq->length)
|
|
|
|
|
{
|
|
|
|
|
*val = cur_val;
|
|
|
|
|
return seq;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2002-08-14 00:40:46 +08:00
|
|
|
|
/* Return the instruction that the function at the PC is using. */
|
|
|
|
|
static enum insn_return_kind
|
|
|
|
|
m68hc11_get_return_insn (CORE_ADDR pc)
|
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *sym;
|
|
|
|
|
|
|
|
|
|
/* A flag indicating that this is a STO_M68HC12_FAR or STO_M68HC12_INTERRUPT
|
|
|
|
|
function is stored by elfread.c in the high bit of the info field.
|
|
|
|
|
Use this to decide which instruction the function uses to return. */
|
|
|
|
|
sym = lookup_minimal_symbol_by_pc (pc);
|
|
|
|
|
if (sym == 0)
|
|
|
|
|
return RETURN_RTS;
|
|
|
|
|
|
|
|
|
|
if (MSYMBOL_IS_RTC (sym))
|
|
|
|
|
return RETURN_RTC;
|
|
|
|
|
else if (MSYMBOL_IS_RTI (sym))
|
|
|
|
|
return RETURN_RTI;
|
|
|
|
|
else
|
|
|
|
|
return RETURN_RTS;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-27 15:18:32 +08:00
|
|
|
|
/* Analyze the function prologue to find some information
|
|
|
|
|
about the function:
|
|
|
|
|
- the PC of the first line (for m68hc11_skip_prologue)
|
|
|
|
|
- the offset of the previous frame saved address (from current frame)
|
|
|
|
|
- the soft registers which are pushed. */
|
2003-07-28 05:24:41 +08:00
|
|
|
|
static CORE_ADDR
|
|
|
|
|
m68hc11_scan_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
|
|
|
|
|
struct m68hc11_unwind_cache *info)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2003-07-28 05:24:41 +08:00
|
|
|
|
LONGEST save_addr;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
CORE_ADDR func_end;
|
|
|
|
|
int size;
|
|
|
|
|
int found_frame_point;
|
2000-08-26 21:36:25 +08:00
|
|
|
|
int saved_reg;
|
2000-12-03 00:55:37 +08:00
|
|
|
|
int done = 0;
|
|
|
|
|
struct insn_sequence *seq_table;
|
2003-07-28 05:24:41 +08:00
|
|
|
|
|
|
|
|
|
info->size = 0;
|
|
|
|
|
info->sp_offset = 0;
|
|
|
|
|
if (pc >= current_pc)
|
|
|
|
|
return current_pc;
|
|
|
|
|
|
2000-07-27 15:18:32 +08:00
|
|
|
|
size = 0;
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
m68hc11_initialize_register_info ();
|
2003-07-28 05:24:41 +08:00
|
|
|
|
if (pc == 0)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2003-07-28 05:24:41 +08:00
|
|
|
|
info->size = 0;
|
|
|
|
|
return pc;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
2000-12-03 00:55:37 +08:00
|
|
|
|
seq_table = gdbarch_tdep (current_gdbarch)->prologue;
|
|
|
|
|
|
2000-07-27 15:18:32 +08:00
|
|
|
|
/* The 68hc11 stack is as follows:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
+-----------+
|
|
|
|
|
| |
|
|
|
|
|
| args |
|
|
|
|
|
| |
|
|
|
|
|
+-----------+
|
|
|
|
|
| PC-return |
|
|
|
|
|
+-----------+
|
|
|
|
|
| Old frame |
|
|
|
|
|
+-----------+
|
|
|
|
|
| |
|
|
|
|
|
| Locals |
|
|
|
|
|
| |
|
|
|
|
|
+-----------+ <--- current frame
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
With most processors (like 68K) the previous frame can be computed
|
|
|
|
|
easily because it is always at a fixed offset (see link/unlink).
|
|
|
|
|
That is, locals are accessed with negative offsets, arguments are
|
|
|
|
|
accessed with positive ones. Since 68hc11 only supports offsets
|
|
|
|
|
in the range [0..255], the frame is defined at the bottom of
|
|
|
|
|
locals (see picture).
|
|
|
|
|
|
|
|
|
|
The purpose of the analysis made here is to find out the size
|
|
|
|
|
of locals in this function. An alternative to this is to use
|
|
|
|
|
DWARF2 info. This would be better but I don't know how to
|
|
|
|
|
access dwarf2 debug from this function.
|
|
|
|
|
|
|
|
|
|
Walk from the function entry point to the point where we save
|
|
|
|
|
the frame. While walking instructions, compute the size of bytes
|
|
|
|
|
which are pushed. This gives us the index to access the previous
|
|
|
|
|
frame.
|
|
|
|
|
|
|
|
|
|
We limit the search to 128 bytes so that the algorithm is bounded
|
|
|
|
|
in case of random and wrong code. We also stop and abort if
|
|
|
|
|
we find an instruction which is not supposed to appear in the
|
|
|
|
|
prologue (as generated by gcc 2.95, 2.96).
|
|
|
|
|
*/
|
|
|
|
|
func_end = pc + 128;
|
|
|
|
|
found_frame_point = 0;
|
2003-07-28 05:24:41 +08:00
|
|
|
|
info->size = 0;
|
|
|
|
|
save_addr = 0;
|
2000-12-03 00:55:37 +08:00
|
|
|
|
while (!done && pc + 2 < func_end)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-12-03 00:55:37 +08:00
|
|
|
|
struct insn_sequence *seq;
|
|
|
|
|
CORE_ADDR val;
|
2003-07-28 05:24:41 +08:00
|
|
|
|
|
2003-07-28 04:54:17 +08:00
|
|
|
|
seq = m68hc11_analyze_instruction (seq_table, pc, &val);
|
2000-12-03 00:55:37 +08:00
|
|
|
|
if (seq == 0)
|
|
|
|
|
break;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2003-07-28 04:54:17 +08:00
|
|
|
|
/* If we are within the instruction group, we can't advance the
|
|
|
|
|
pc nor the stack offset. Otherwise the caller's stack computed
|
|
|
|
|
from the current stack can be wrong. */
|
|
|
|
|
if (pc + seq->length > current_pc)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
pc = pc + seq->length;
|
2000-12-03 00:55:37 +08:00
|
|
|
|
if (seq->type == P_SAVE_REG)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-12-03 00:55:37 +08:00
|
|
|
|
if (found_frame_point)
|
|
|
|
|
{
|
|
|
|
|
saved_reg = m68hc11_which_soft_register (val);
|
|
|
|
|
if (saved_reg < 0)
|
|
|
|
|
break;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-12-03 00:55:37 +08:00
|
|
|
|
save_addr -= 2;
|
2005-11-11 18:25:34 +08:00
|
|
|
|
if (info->saved_regs)
|
|
|
|
|
info->saved_regs[saved_reg].addr = save_addr;
|
2000-12-03 00:55:37 +08:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
size += 2;
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
2000-12-03 00:55:37 +08:00
|
|
|
|
else if (seq->type == P_SET_FRAME)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
|
|
|
|
found_frame_point = 1;
|
2003-07-28 05:24:41 +08:00
|
|
|
|
info->size = size;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
2000-12-03 00:55:37 +08:00
|
|
|
|
else if (seq->type == P_LOCAL_1)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-09-06 04:57:25 +08:00
|
|
|
|
size += 1;
|
|
|
|
|
}
|
2000-12-03 00:55:37 +08:00
|
|
|
|
else if (seq->type == P_LOCAL_2)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-12-03 00:55:37 +08:00
|
|
|
|
size += 2;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
2000-12-03 00:55:37 +08:00
|
|
|
|
else if (seq->type == P_LOCAL_N)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-12-03 00:55:37 +08:00
|
|
|
|
/* Stack pointer is decremented for the allocation. */
|
|
|
|
|
if (val & 0x8000)
|
|
|
|
|
size -= (int) (val) | 0xffff0000;
|
|
|
|
|
else
|
|
|
|
|
size -= val;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
2003-07-28 05:24:41 +08:00
|
|
|
|
if (found_frame_point == 0)
|
|
|
|
|
info->sp_offset = size;
|
|
|
|
|
else
|
|
|
|
|
info->sp_offset = -1;
|
|
|
|
|
return pc;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static CORE_ADDR
|
2000-07-27 15:18:32 +08:00
|
|
|
|
m68hc11_skip_prologue (CORE_ADDR pc)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR func_addr, func_end;
|
|
|
|
|
struct symtab_and_line sal;
|
2003-07-28 05:24:41 +08:00
|
|
|
|
struct m68hc11_unwind_cache tmp_cache = { 0 };
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* If we have line debugging information, then the end of the
|
|
|
|
|
prologue should be the first assembly instruction of the
|
2000-07-27 15:18:32 +08:00
|
|
|
|
first source line. */
|
|
|
|
|
if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
|
|
|
|
|
{
|
|
|
|
|
sal = find_pc_line (func_addr, 0);
|
|
|
|
|
if (sal.end && sal.end < func_end)
|
|
|
|
|
return sal.end;
|
|
|
|
|
}
|
|
|
|
|
|
2003-07-28 05:24:41 +08:00
|
|
|
|
pc = m68hc11_scan_prologue (pc, (CORE_ADDR) -1, &tmp_cache);
|
2000-07-27 15:18:32 +08:00
|
|
|
|
return pc;
|
|
|
|
|
}
|
|
|
|
|
|
2003-07-28 05:24:41 +08:00
|
|
|
|
static CORE_ADDR
|
|
|
|
|
m68hc11_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST pc;
|
|
|
|
|
|
|
|
|
|
frame_unwind_unsigned_register (next_frame, gdbarch_pc_regnum (gdbarch),
|
|
|
|
|
&pc);
|
|
|
|
|
return pc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Put here the code to store, into fi->saved_regs, the addresses of
|
|
|
|
|
the saved registers of frame described by FRAME_INFO. This
|
|
|
|
|
includes special registers such as pc and fp saved in special ways
|
|
|
|
|
in the stack frame. sp is even more special: the address we return
|
|
|
|
|
for it IS the sp for the next frame. */
|
|
|
|
|
|
|
|
|
|
struct m68hc11_unwind_cache *
|
|
|
|
|
m68hc11_frame_unwind_cache (struct frame_info *next_frame,
|
|
|
|
|
void **this_prologue_cache)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST prev_sp;
|
|
|
|
|
ULONGEST this_base;
|
|
|
|
|
struct m68hc11_unwind_cache *info;
|
|
|
|
|
CORE_ADDR current_pc;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if ((*this_prologue_cache))
|
|
|
|
|
return (*this_prologue_cache);
|
|
|
|
|
|
|
|
|
|
info = FRAME_OBSTACK_ZALLOC (struct m68hc11_unwind_cache);
|
|
|
|
|
(*this_prologue_cache) = info;
|
|
|
|
|
info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
|
|
|
|
|
|
* dwarf2-frame.c (dwarf2_frame_cache, dwarf2_frame_this_id)
(dwarf2_frame_sniffer): Update.
(dwarf2_signal_frame_this_id): New function.
(dwarf2_signal_frame_unwind): Use it.
(dwarf2_frame_base_sniffer): Use frame_unwind_address_in_block.
* frame.c (frame_func_unwind): Add this_type argument.
(get_frame_func): Update.
(frame_unwind_address_in_block): Add this_type argument and check it.
Fix a typo.
(get_frame_address_in_block): Update.
* frame.h (enum frame_type): Move higher in the file.
(frame_unwind_address_in_block, frame_func_unwind): Add enum frame_type
argument.
* alpha-mdebug-tdep.c, alpha-tdep.c, amd64-tdep.c, amd64obsd-tdep.c,
arm-tdep.c, avr-tdep.c, cris-tdep.c, frv-tdep.c, h8300-tdep.c,
hppa-tdep.c, i386-tdep.c, i386obsd-tdep.c, ia64-tdep.c,
libunwind-frame.c, m32c-tdep.c, m32r-linux-tdep.c, m32r-tdep.c,
m68hc11-tdep.c, m68k-tdep.c, m88k-tdep.c, mips-mdebug-tdep.c,
mips-tdep.c, mn10300-tdep.c, mt-tdep.c, rs6000-tdep.c, s390-tdep.c,
score-tdep.c, sh-tdep.c, sh64-tdep.c, sparc-tdep.c,
sparc64obsd-tdep.c, spu-tdep.c, v850-tdep.c, vax-tdep.c,
xstormy16-tdep.c, xtensa-tdep.c: Update calls to
frame_func_unwind and frame_unwind_address_in_block to specify
the frame type. Use frame_unwind_address_in_block instead of
frame_pc_unwind in sniffers.
* gdb.arch/i386-signal.c, gdb.arch/i386-signal.exp: New files.
2007-02-28 04:17:19 +08:00
|
|
|
|
info->pc = frame_func_unwind (next_frame, NORMAL_FRAME);
|
2003-07-28 05:24:41 +08:00
|
|
|
|
|
|
|
|
|
info->size = 0;
|
|
|
|
|
info->return_kind = m68hc11_get_return_insn (info->pc);
|
|
|
|
|
|
|
|
|
|
/* The SP was moved to the FP. This indicates that a new frame
|
|
|
|
|
was created. Get THIS frame's FP value by unwinding it from
|
|
|
|
|
the next frame. */
|
|
|
|
|
frame_unwind_unsigned_register (next_frame, SOFT_FP_REGNUM, &this_base);
|
|
|
|
|
if (this_base == 0)
|
|
|
|
|
{
|
|
|
|
|
info->base = 0;
|
|
|
|
|
return info;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
current_pc = frame_pc_unwind (next_frame);
|
|
|
|
|
if (info->pc != 0)
|
|
|
|
|
m68hc11_scan_prologue (info->pc, current_pc, info);
|
|
|
|
|
|
|
|
|
|
info->saved_regs[HARD_PC_REGNUM].addr = info->size;
|
|
|
|
|
|
|
|
|
|
if (info->sp_offset != (CORE_ADDR) -1)
|
|
|
|
|
{
|
|
|
|
|
info->saved_regs[HARD_PC_REGNUM].addr = info->sp_offset;
|
|
|
|
|
frame_unwind_unsigned_register (next_frame, HARD_SP_REGNUM, &this_base);
|
|
|
|
|
prev_sp = this_base + info->sp_offset + 2;
|
|
|
|
|
this_base += STACK_CORRECTION;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* The FP points at the last saved register. Adjust the FP back
|
|
|
|
|
to before the first saved register giving the SP. */
|
|
|
|
|
prev_sp = this_base + info->size + 2;
|
|
|
|
|
|
|
|
|
|
this_base += STACK_CORRECTION;
|
|
|
|
|
if (soft_regs[SOFT_FP_REGNUM].name)
|
|
|
|
|
info->saved_regs[SOFT_FP_REGNUM].addr = info->size - 2;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (info->return_kind == RETURN_RTC)
|
|
|
|
|
{
|
|
|
|
|
prev_sp += 1;
|
|
|
|
|
info->saved_regs[HARD_PAGE_REGNUM].addr = info->size;
|
|
|
|
|
info->saved_regs[HARD_PC_REGNUM].addr = info->size + 1;
|
|
|
|
|
}
|
|
|
|
|
else if (info->return_kind == RETURN_RTI)
|
|
|
|
|
{
|
|
|
|
|
prev_sp += 7;
|
|
|
|
|
info->saved_regs[HARD_CCR_REGNUM].addr = info->size;
|
|
|
|
|
info->saved_regs[HARD_D_REGNUM].addr = info->size + 1;
|
|
|
|
|
info->saved_regs[HARD_X_REGNUM].addr = info->size + 3;
|
|
|
|
|
info->saved_regs[HARD_Y_REGNUM].addr = info->size + 5;
|
|
|
|
|
info->saved_regs[HARD_PC_REGNUM].addr = info->size + 7;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Add 1 here to adjust for the post-decrement nature of the push
|
|
|
|
|
instruction.*/
|
|
|
|
|
info->prev_sp = prev_sp;
|
|
|
|
|
|
|
|
|
|
info->base = this_base;
|
|
|
|
|
|
|
|
|
|
/* Adjust all the saved registers so that they contain addresses and not
|
|
|
|
|
offsets. */
|
2007-05-31 Markus Deuling <deuling@de.ibm.com>
* gdbarch.sh (NUM_REGS): Replace by gdbarch_num_regs.
* i386-tdep.c (i386_dbx_reg_to_regnum)
(i386_svr4_reg_to_regnum): Likewise.
* inf-ptrace.c (inf_ptrace_fetch_registers)
(inf_ptrace_store_registers): Likewise.
* corelow.c (get_core_registers): Likewise.
* i386-linux-nat.c (supply_gregset, fill_gregset)
(i386_linux_fetch_inferior_registers)
(i386_linux_store_inferior_registers): Likewise.
* remote.c (init_remote_state,packet_reg_from_regnum)
(packet_reg_from_pnum,process_g_packet,remote_fetch_registers)
(remote_prepare_to_store,store_registers_using_G)
(remote_store_registers,remote_arch_state): Likewise.
* tracepoint.c (encode_actions): Likewise.
* mi/mi-main.c (mi_cmd_data_list_register_names)
(mi_cmd_data_list_changed_registers,mi_cmd_data_list_register_values)
(mi_cmd_data_write_register_values): Likewise.
* tui/tui-regs.c (tui_show_register_group)
(tui_show_register_group): Likewise.
* xtensa-tdep.h (FP_ALIAS): Likewise.
* xtensa-tdep.c (xtensa_register_name,xtensa_register_type)
(xtensa_reg_to_regnum,xtensa_pseudo_register_read)
(xtensa_pseudo_register_write,xtensa_register_reggroup_p): Likewise.
* win32-nat.c (do_win32_fetch_inferior_registers)
(do_win32_store_inferior_registers,fetch_elf_core_registers
* user-regs.h: Likewise (comment).
* user-regs.c (user_reg, user_reg_map_name_to_regnum): Likewise.
* trad-frame.c (trad_frame_alloc_saved_regs): Likewise.
* target-descriptions.h: Likewise (comment).
* target-descriptions.c (tdesc_use_registers): Likewise (comment).
* target.c (debug_print_register): Likewise.
* stack.c (frame_info): Likewise.
* stabsread.c (define_symbol): Likewise.
* sh64-tdep.c (sh64_do_pseudo_register,sh64_print_register)
(sh64_media_print_registers_info)
(sh64_compact_print_registers_info): Likewise.
* rs6000-tdep.c (rs6000_register_sim_regno): Likewise.
* rs6000-nat.c (fetch_register,store_register): Likewise.
* remote-sim.c (one2one_register_sim_regno,gdbsim_fetch_register)
(gdbsim_fetch_register,gdbsim_store_register): Likewise.
* remote-mips.c (mips_fetch_registers,mips_store_registers): Likewise.
* remote-m32r-sdi.c (m32r_fetch_registers)
(m32r_store_registers): Likewise.
* reggroups.c (default_register_reggroup_p): Likewise.
* regcache.c (init_regcache_descr,register_size,regcache,regcache_save)
(regcache_restore,regcache_dump): Likewise.
* monitor.c (monitor_fetch_registers,monitor_store_registers): Likewise.
* mips-tdep.c (mips_xfer_register,mips_register_name)
(mips_register_reggroup_p,mips_pseudo_register_read)
(mips_pseudo_register_write,mips_convert_register_p,mips_register_type)
(mips_unwind_pc,mips_unwind_sp,mips_unwind_dummy_id,set_reg_offset)
(mips16_scan_prologue,mips_insn16_frame_cache,reset_saved_regs)
(mips32_scan_prologue,mips_insn32_frame_cache,read_next_frame_reg)
(mips_n32n64_return_value,mips_o32_return_value,mips_o64_return_value)
(print_gp_register_row,mips_print_registers_info)
(mips_stab_reg_to_regnum,mips_dwarf_dwarf2_ecoff_reg_to_regnum)
(mips_register_sim_regno): Likewise.
* mips-linux-tdep.c (mips_linux_o32_sigframe_init)
(mips_linux_n32n64_sigframe_init): Likewise.
* mips-linux-nat.c (mips_linux_register_addr)
(mips64_linux_register_addr): Likewise.
* findvar.c (value_of_register): Likewise.
* infcmd.c (default_print_registers_info,registers_info)
(print_vector_info,print_float_info): Likewise.
* mips64obsd-tdep.c (mips64obsd_sigframe_init): Likewise.
* inf-child.c (inf_child_fetch_inferior_registers): Likewise.
* m68k-tdep.c (m68k_dwarf_reg_to_regnum): Likewise.
* m68hc11-tdep.c (m68hc11_frame_unwind_cache(: Likewise.
* m32r-tdep.c (m32r_frame_unwind_cache): Likewise.
* ia64-linux-nat.c (ia64_register_addr,ia64_cannot_fetch_register)
(ia64_cannot_store_register,ia64_linux_fetch_registers)
(ia64_linux_store_registers): Likewise.
* hpux-thread.c (hpux_thread_fetch_registers)
(hpux_thread_store_registers): Likewise.
* h8300-tdep.c (E_PSEUDO_CCR_REGNUM,E_PSEUDO_EXR_REGNUM)
(h8300_init_frame_cache,h8300_frame_cache,h8300_frame_prev_register)
(h8300_register_type): Likewise.
* dwarf2-frame.c (dwarf2_frame_cache)
(dwarf2_frame_state_alloc_regs): Likewise.
* cris-tdep.c (cris_register_size,cris_cannot_fetch_register)
(cris_cannot_store_register,crisv32_cannot_fetch_register)
(crisv32_cannot_store_register,cris_register_name): Likewise.
* avr-tdep.c (avr_frame_unwind_cache): Likewise.
* arch-utils.c (legacy_register_sim_regno)
(legacy_virtual_frame_pointer): Likewise.
* arm-tdep.c (arm_make_prologue_cache,arm_register_sim_regno):Likewise.
* arm-tdep.h: Likewise (comment).
* frv-tdep.c (frv_register_sim_regno): Likewise.
* m68klinux-nat.c (old_fetch_inferior_registers)
(old_store_inferior_registers): Likewise.
* m32c-tdep.c (m32c_virtual_frame_pointer): Likewise.
* irix5-nat.c (fetch_core_registers): Likewise.
* hppa-tdep.c (hppa_frame_cache): Likewise.
* hppa-linux-nat.c (hppa_linux_register_addr)
(hppa_linux_fetch_inferior_registers)
(hppa_linux_store_inferior_registers): Likewise.
* hppa-hpux-nat.c (hppa_hpux_fetch_inferior_registers)
(hppa_hpux_store_inferior_registers): Likewise.
* amd64-nat.c (amd64_native_gregset_reg_offset)
(amd64_supply_native_gregset,amd64_collect_native_gregset): Likewise.
* dbug-rom.c (dbug_regname): Likewise.
* m68hc11-tdep.c (m68hc11_frame_unwind_cache)
(HARD_PAGE_REGNUM (comment)): Likewise.
* gdbarch.sh (NUM_PSEUDO_REGS): Replace by gdbarch_num_pseudo_regs.
* i386-tdep.c (i386_dbx_reg_to_regnum)
(i386_svr4_reg_to_regnum): Likewise.
* mi/mi-main.c (mi_cmd_data_list_register_names)
(mi_cmd_data_list_changed_registers,mi_cmd_data_list_register_values)
(mi_cmd_data_write_register_values): Likewise.
* gdbarch.c, gdbarch.h: Regenerate.
* tui/tui-regs.c (tui_show_register_group): Likewise.
* xtensa-tdep.h (FP_ALIAS): Likewise.
* user-regs.h: Likewise (comment).
* user-regs.c (user_reg, user_reg_map_name_to_regnum): Likewise.
* trad-frame.c (trad_frame_alloc_saved_regs): Likewise.
* target-descriptions.h: Likewise (comment).
* target.c (debug_print_register): Likewise.
* stack.c (frame_info): Likewise.
* stabsread.c (define_symbol): Likewise.
* sh64-tdep.c (sh64_print_register,sh64_media_print_registers_info)
(sh64_compact_print_registers_info): Likewise.
* rs6000-tdep.c (rs6000_register_sim_regno): Likewise.
* regcache.c (init_regcache_descr,register_size,regcache,regcache_save
(regcache_restore,regcache_dump): Likewise.
* mips-tdep.c (print_gp_register_row,mips_print_registers_info)
(mips_dwarf_dwarf2_ecoff_reg_to_regnum)
(mips_stab_reg_to_regnum): Likewise.
* findvar.c (value_of_register): Likewise.
* infcmd.c (default_print_registers_info,registers_info)
(print_vector_info,print_float_info): Likewise.
* m68k-tdep.c (m68k_dwarf_reg_to_regnum): Likewise.
* h8300-tdep.c (h8300_register_type): Likewise.
* dwarf2-frame.c (dwarf2_frame_cache): Likewise.
* frame.h (SIZEOF_FRAME_SAVED_REGS): Likewise.
* xtensa-tdep.c (xtensa_register_type,xtensa_reg_to_regnum)
(xtensa_pseudo_register_read,xtensa_pseudo_register_write): Likewise.
* parse.c: Remove comment.
* gdbarch.c, gdbarch.h: Regenerate
2007-06-01 01:32:22 +08:00
|
|
|
|
for (i = 0;
|
|
|
|
|
i < gdbarch_num_regs (current_gdbarch)
|
|
|
|
|
+ gdbarch_num_pseudo_regs (current_gdbarch) - 1;
|
|
|
|
|
i++)
|
2003-07-28 05:24:41 +08:00
|
|
|
|
if (trad_frame_addr_p (info->saved_regs, i))
|
|
|
|
|
{
|
|
|
|
|
info->saved_regs[i].addr += this_base;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The previous frame's SP needed to be computed. Save the computed
|
|
|
|
|
value. */
|
|
|
|
|
trad_frame_set_value (info->saved_regs, HARD_SP_REGNUM, info->prev_sp);
|
|
|
|
|
|
|
|
|
|
return info;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Given a GDB frame, determine the address of the calling function's
|
|
|
|
|
frame. This will be used to create a new GDB frame struct. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_frame_this_id (struct frame_info *next_frame,
|
|
|
|
|
void **this_prologue_cache,
|
|
|
|
|
struct frame_id *this_id)
|
|
|
|
|
{
|
|
|
|
|
struct m68hc11_unwind_cache *info
|
|
|
|
|
= m68hc11_frame_unwind_cache (next_frame, this_prologue_cache);
|
|
|
|
|
CORE_ADDR base;
|
|
|
|
|
CORE_ADDR func;
|
|
|
|
|
struct frame_id id;
|
|
|
|
|
|
|
|
|
|
/* The FUNC is easy. */
|
* dwarf2-frame.c (dwarf2_frame_cache, dwarf2_frame_this_id)
(dwarf2_frame_sniffer): Update.
(dwarf2_signal_frame_this_id): New function.
(dwarf2_signal_frame_unwind): Use it.
(dwarf2_frame_base_sniffer): Use frame_unwind_address_in_block.
* frame.c (frame_func_unwind): Add this_type argument.
(get_frame_func): Update.
(frame_unwind_address_in_block): Add this_type argument and check it.
Fix a typo.
(get_frame_address_in_block): Update.
* frame.h (enum frame_type): Move higher in the file.
(frame_unwind_address_in_block, frame_func_unwind): Add enum frame_type
argument.
* alpha-mdebug-tdep.c, alpha-tdep.c, amd64-tdep.c, amd64obsd-tdep.c,
arm-tdep.c, avr-tdep.c, cris-tdep.c, frv-tdep.c, h8300-tdep.c,
hppa-tdep.c, i386-tdep.c, i386obsd-tdep.c, ia64-tdep.c,
libunwind-frame.c, m32c-tdep.c, m32r-linux-tdep.c, m32r-tdep.c,
m68hc11-tdep.c, m68k-tdep.c, m88k-tdep.c, mips-mdebug-tdep.c,
mips-tdep.c, mn10300-tdep.c, mt-tdep.c, rs6000-tdep.c, s390-tdep.c,
score-tdep.c, sh-tdep.c, sh64-tdep.c, sparc-tdep.c,
sparc64obsd-tdep.c, spu-tdep.c, v850-tdep.c, vax-tdep.c,
xstormy16-tdep.c, xtensa-tdep.c: Update calls to
frame_func_unwind and frame_unwind_address_in_block to specify
the frame type. Use frame_unwind_address_in_block instead of
frame_pc_unwind in sniffers.
* gdb.arch/i386-signal.c, gdb.arch/i386-signal.exp: New files.
2007-02-28 04:17:19 +08:00
|
|
|
|
func = frame_func_unwind (next_frame, NORMAL_FRAME);
|
2003-07-28 05:24:41 +08:00
|
|
|
|
|
|
|
|
|
/* Hopefully the prologue analysis either correctly determined the
|
|
|
|
|
frame's base (which is the SP from the previous frame), or set
|
|
|
|
|
that base to "NULL". */
|
|
|
|
|
base = info->prev_sp;
|
|
|
|
|
if (base == 0)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
id = frame_id_build (base, func);
|
|
|
|
|
(*this_id) = id;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_frame_prev_register (struct frame_info *next_frame,
|
|
|
|
|
void **this_prologue_cache,
|
|
|
|
|
int regnum, int *optimizedp,
|
|
|
|
|
enum lval_type *lvalp, CORE_ADDR *addrp,
|
2005-11-11 18:25:34 +08:00
|
|
|
|
int *realnump, gdb_byte *bufferp)
|
2003-07-28 05:24:41 +08:00
|
|
|
|
{
|
|
|
|
|
struct m68hc11_unwind_cache *info
|
|
|
|
|
= m68hc11_frame_unwind_cache (next_frame, this_prologue_cache);
|
|
|
|
|
|
2004-08-01 05:53:17 +08:00
|
|
|
|
trad_frame_get_prev_register (next_frame, info->saved_regs, regnum,
|
|
|
|
|
optimizedp, lvalp, addrp, realnump, bufferp);
|
2003-07-28 05:24:41 +08:00
|
|
|
|
|
|
|
|
|
if (regnum == HARD_PC_REGNUM)
|
|
|
|
|
{
|
|
|
|
|
/* Take into account the 68HC12 specific call (PC + page). */
|
|
|
|
|
if (info->return_kind == RETURN_RTC
|
|
|
|
|
&& *addrp >= 0x08000 && *addrp < 0x0c000
|
|
|
|
|
&& USE_PAGE_REGISTER)
|
|
|
|
|
{
|
|
|
|
|
int page_optimized;
|
|
|
|
|
|
|
|
|
|
CORE_ADDR page;
|
|
|
|
|
|
2004-08-01 05:53:17 +08:00
|
|
|
|
trad_frame_get_prev_register (next_frame, info->saved_regs,
|
|
|
|
|
HARD_PAGE_REGNUM, &page_optimized,
|
|
|
|
|
0, &page, 0, 0);
|
2003-07-28 05:24:41 +08:00
|
|
|
|
*addrp -= 0x08000;
|
|
|
|
|
*addrp += ((page & 0x0ff) << 14);
|
|
|
|
|
*addrp += 0x1000000;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct frame_unwind m68hc11_frame_unwind = {
|
|
|
|
|
NORMAL_FRAME,
|
|
|
|
|
m68hc11_frame_this_id,
|
|
|
|
|
m68hc11_frame_prev_register
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const struct frame_unwind *
|
2003-08-19 01:35:16 +08:00
|
|
|
|
m68hc11_frame_sniffer (struct frame_info *next_frame)
|
2003-07-28 05:24:41 +08:00
|
|
|
|
{
|
|
|
|
|
return &m68hc11_frame_unwind;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
m68hc11_frame_base_address (struct frame_info *next_frame, void **this_cache)
|
|
|
|
|
{
|
|
|
|
|
struct m68hc11_unwind_cache *info
|
|
|
|
|
= m68hc11_frame_unwind_cache (next_frame, this_cache);
|
|
|
|
|
|
|
|
|
|
return info->base;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
m68hc11_frame_args_address (struct frame_info *next_frame, void **this_cache)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
struct m68hc11_unwind_cache *info
|
|
|
|
|
= m68hc11_frame_unwind_cache (next_frame, this_cache);
|
|
|
|
|
|
|
|
|
|
addr = info->base + info->size;
|
|
|
|
|
if (info->return_kind == RETURN_RTC)
|
|
|
|
|
addr += 1;
|
|
|
|
|
else if (info->return_kind == RETURN_RTI)
|
|
|
|
|
addr += 7;
|
|
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static const struct frame_base m68hc11_frame_base = {
|
|
|
|
|
&m68hc11_frame_unwind,
|
|
|
|
|
m68hc11_frame_base_address,
|
|
|
|
|
m68hc11_frame_base_address,
|
|
|
|
|
m68hc11_frame_args_address
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
m68hc11_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST sp;
|
|
|
|
|
frame_unwind_unsigned_register (next_frame, HARD_SP_REGNUM, &sp);
|
|
|
|
|
return sp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Assuming NEXT_FRAME->prev is a dummy, return the frame ID of that
|
|
|
|
|
dummy frame. The frame ID's base needs to match the TOS value
|
|
|
|
|
saved by save_dummy_frame_tos(), and the PC match the dummy frame's
|
|
|
|
|
breakpoint. */
|
|
|
|
|
|
|
|
|
|
static struct frame_id
|
|
|
|
|
m68hc11_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST tos;
|
|
|
|
|
CORE_ADDR pc = frame_pc_unwind (next_frame);
|
|
|
|
|
|
|
|
|
|
frame_unwind_unsigned_register (next_frame, SOFT_FP_REGNUM, &tos);
|
|
|
|
|
tos += 2;
|
|
|
|
|
return frame_id_build (tos, pc);
|
|
|
|
|
}
|
2000-07-27 15:18:32 +08:00
|
|
|
|
|
2003-07-25 03:59:33 +08:00
|
|
|
|
|
|
|
|
|
/* Get and print the register from the given frame. */
|
2000-07-27 15:18:32 +08:00
|
|
|
|
static void
|
2003-07-25 03:59:33 +08:00
|
|
|
|
m68hc11_print_register (struct gdbarch *gdbarch, struct ui_file *file,
|
|
|
|
|
struct frame_info *frame, int regno)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2003-07-25 03:59:33 +08:00
|
|
|
|
LONGEST rval;
|
|
|
|
|
|
|
|
|
|
if (regno == HARD_PC_REGNUM || regno == HARD_SP_REGNUM
|
|
|
|
|
|| regno == SOFT_FP_REGNUM || regno == M68HC12_HARD_PC_REGNUM)
|
2003-09-29 06:32:20 +08:00
|
|
|
|
rval = get_frame_register_unsigned (frame, regno);
|
2003-07-25 03:59:33 +08:00
|
|
|
|
else
|
2003-09-29 06:32:20 +08:00
|
|
|
|
rval = get_frame_register_signed (frame, regno);
|
2003-07-25 03:59:33 +08:00
|
|
|
|
|
|
|
|
|
if (regno == HARD_A_REGNUM || regno == HARD_B_REGNUM
|
|
|
|
|
|| regno == HARD_CCR_REGNUM || regno == HARD_PAGE_REGNUM)
|
2002-08-14 00:40:46 +08:00
|
|
|
|
{
|
2003-07-25 03:59:33 +08:00
|
|
|
|
fprintf_filtered (file, "0x%02x ", (unsigned char) rval);
|
|
|
|
|
if (regno != HARD_CCR_REGNUM)
|
|
|
|
|
print_longest (file, 'd', 1, rval);
|
2002-08-14 00:40:46 +08:00
|
|
|
|
}
|
2003-07-25 03:59:33 +08:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (regno == HARD_PC_REGNUM && gdbarch_tdep (gdbarch)->use_page_register)
|
|
|
|
|
{
|
|
|
|
|
ULONGEST page;
|
2002-08-14 00:40:46 +08:00
|
|
|
|
|
2003-09-29 06:32:20 +08:00
|
|
|
|
page = get_frame_register_unsigned (frame, HARD_PAGE_REGNUM);
|
2003-07-25 03:59:33 +08:00
|
|
|
|
fprintf_filtered (file, "0x%02x:%04x ", (unsigned) page,
|
|
|
|
|
(unsigned) rval);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
fprintf_filtered (file, "0x%04x ", (unsigned) rval);
|
|
|
|
|
if (regno != HARD_PC_REGNUM && regno != HARD_SP_REGNUM
|
|
|
|
|
&& regno != SOFT_FP_REGNUM && regno != M68HC12_HARD_PC_REGNUM)
|
|
|
|
|
print_longest (file, 'd', 1, rval);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (regno == HARD_CCR_REGNUM)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2003-07-25 03:59:33 +08:00
|
|
|
|
/* CCR register */
|
|
|
|
|
int C, Z, N, V;
|
|
|
|
|
unsigned char l = rval & 0xff;
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, "%c%c%c%c%c%c%c%c ",
|
|
|
|
|
l & M6811_S_BIT ? 'S' : '-',
|
|
|
|
|
l & M6811_X_BIT ? 'X' : '-',
|
|
|
|
|
l & M6811_H_BIT ? 'H' : '-',
|
|
|
|
|
l & M6811_I_BIT ? 'I' : '-',
|
|
|
|
|
l & M6811_N_BIT ? 'N' : '-',
|
|
|
|
|
l & M6811_Z_BIT ? 'Z' : '-',
|
|
|
|
|
l & M6811_V_BIT ? 'V' : '-',
|
|
|
|
|
l & M6811_C_BIT ? 'C' : '-');
|
|
|
|
|
N = (l & M6811_N_BIT) != 0;
|
|
|
|
|
Z = (l & M6811_Z_BIT) != 0;
|
|
|
|
|
V = (l & M6811_V_BIT) != 0;
|
|
|
|
|
C = (l & M6811_C_BIT) != 0;
|
|
|
|
|
|
|
|
|
|
/* Print flags following the h8300 */
|
|
|
|
|
if ((C | Z) == 0)
|
|
|
|
|
fprintf_filtered (file, "u> ");
|
|
|
|
|
else if ((C | Z) == 1)
|
|
|
|
|
fprintf_filtered (file, "u<= ");
|
|
|
|
|
else if (C == 0)
|
|
|
|
|
fprintf_filtered (file, "u< ");
|
|
|
|
|
|
|
|
|
|
if (Z == 0)
|
|
|
|
|
fprintf_filtered (file, "!= ");
|
|
|
|
|
else
|
|
|
|
|
fprintf_filtered (file, "== ");
|
|
|
|
|
|
|
|
|
|
if ((N ^ V) == 0)
|
|
|
|
|
fprintf_filtered (file, ">= ");
|
|
|
|
|
else
|
|
|
|
|
fprintf_filtered (file, "< ");
|
|
|
|
|
|
|
|
|
|
if ((Z | (N ^ V)) == 0)
|
|
|
|
|
fprintf_filtered (file, "> ");
|
2000-07-27 15:18:32 +08:00
|
|
|
|
else
|
2003-07-25 03:59:33 +08:00
|
|
|
|
fprintf_filtered (file, "<= ");
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
2003-07-25 03:59:33 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Same as 'info reg' but prints the registers in a different way. */
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file,
|
|
|
|
|
struct frame_info *frame, int regno, int cpregs)
|
|
|
|
|
{
|
|
|
|
|
if (regno >= 0)
|
|
|
|
|
{
|
|
|
|
|
const char *name = gdbarch_register_name (gdbarch, regno);
|
|
|
|
|
|
|
|
|
|
if (!name || !*name)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, "%-10s ", name);
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, regno);
|
|
|
|
|
fprintf_filtered (file, "\n");
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int i, nr;
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, "PC=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_PC_REGNUM);
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, " SP=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_SP_REGNUM);
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, " FP=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, SOFT_FP_REGNUM);
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, "\nCCR=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_CCR_REGNUM);
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, "\nD=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_D_REGNUM);
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, " X=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_X_REGNUM);
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, " Y=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_Y_REGNUM);
|
|
|
|
|
|
|
|
|
|
if (gdbarch_tdep (gdbarch)->use_page_register)
|
|
|
|
|
{
|
|
|
|
|
fprintf_filtered (file, "\nPage=");
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, HARD_PAGE_REGNUM);
|
|
|
|
|
}
|
|
|
|
|
fprintf_filtered (file, "\n");
|
|
|
|
|
|
|
|
|
|
nr = 0;
|
|
|
|
|
for (i = SOFT_D1_REGNUM; i < M68HC11_ALL_REGS; i++)
|
|
|
|
|
{
|
|
|
|
|
/* Skip registers which are not defined in the symbol table. */
|
|
|
|
|
if (soft_regs[i].name == 0)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
fprintf_filtered (file, "D%d=", i - SOFT_D1_REGNUM + 1);
|
|
|
|
|
m68hc11_print_register (gdbarch, file, frame, i);
|
|
|
|
|
nr++;
|
|
|
|
|
if ((nr % 8) == 7)
|
|
|
|
|
fprintf_filtered (file, "\n");
|
|
|
|
|
else
|
|
|
|
|
fprintf_filtered (file, " ");
|
|
|
|
|
}
|
|
|
|
|
if (nr && (nr % 8) != 7)
|
|
|
|
|
fprintf_filtered (file, "\n");
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static CORE_ADDR
|
2004-06-07 10:02:55 +08:00
|
|
|
|
m68hc11_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
|
2003-07-28 04:27:29 +08:00
|
|
|
|
struct regcache *regcache, CORE_ADDR bp_addr,
|
|
|
|
|
int nargs, struct value **args, CORE_ADDR sp,
|
|
|
|
|
int struct_return, CORE_ADDR struct_addr)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-08-26 21:36:25 +08:00
|
|
|
|
int argnum;
|
|
|
|
|
int first_stack_argnum;
|
|
|
|
|
struct type *type;
|
|
|
|
|
char *val;
|
|
|
|
|
int len;
|
2003-07-28 04:27:29 +08:00
|
|
|
|
char buf[2];
|
2000-08-26 21:36:25 +08:00
|
|
|
|
|
|
|
|
|
first_stack_argnum = 0;
|
|
|
|
|
if (struct_return)
|
|
|
|
|
{
|
2005-11-11 18:25:34 +08:00
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_D_REGNUM, struct_addr);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
else if (nargs > 0)
|
|
|
|
|
{
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* sparc-tdep.c: Replace VALUE_TYPE with value_type.
* v850-tdep.c, sparc64-tdep.c, sh-tdep.c: Ditto.
* sh64-tdep.c, s390-tdep.c, mcore-tdep.c: Ditto.
* h8300-tdep.c, arm-linux-tdep.c, amd64-tdep.c: Ditto.
* hppa-tdep.c, mips-tdep.c, m88k-tdep.c: Ditto.
* m68hc11-tdep.c, m32r-tdep.c, ia64-tdep.c: Ditto.
* frv-tdep.c, cris-tdep.c, avr-tdep.c, alpha-tdep.c: Ditto.
2004-11-13 10:15:33 +08:00
|
|
|
|
type = value_type (args[0]);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
len = TYPE_LENGTH (type);
|
2003-07-28 04:27:29 +08:00
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* First argument is passed in D and X registers. */
|
|
|
|
|
if (len <= 4)
|
|
|
|
|
{
|
2003-07-28 04:27:29 +08:00
|
|
|
|
ULONGEST v;
|
|
|
|
|
|
2005-02-06 Andrew Cagney <cagney@gnu.org>
* value.c (value_contents, value_contents_writeable): New
functions.
* value.h (VALUE_CONTENTS): Delete macro.
(value_contents, value_contents_writeable): Declare.
* xstormy16-tdep.c, value.c, valops.c, valarith.c: Update.
* stack.c, sparc-tdep.c, sparc64-tdep.c, sh-tdep.c: Update.
* sh64-tdep.c, scm-valprint.c, scm-exp.c, s390-tdep.c: Update.
* rs6000-tdep.c, p-valprint.c, printcmd.c: Update.
* ppc-sysv-tdep.c, mips-tdep.c, mi/mi-main.c: Update.
* m88k-tdep.c, m68hc11-tdep.c, m32r-tdep.c: Update.
* jv-valprint.c, ia64-tdep.c, hppa-tdep.c: Update.
* hpacc-abi.c, f-valprint.c, frv-tdep.c, eval.c: Update.
* c-valprint.c, cris-tdep.c, cp-valprint.c: Update.
* cli/cli-dump.c, breakpoint.c, avr-tdep.c, arm-tdep.c: Update.
* arm-linux-tdep.c, amd64-tdep.c, alpha-tdep.c: Update.
* ada-valprint.c, ada-lang.c: Update.
2005-02-07 08:09:56 +08:00
|
|
|
|
v = extract_unsigned_integer (value_contents (args[0]), len);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
first_stack_argnum = 1;
|
2003-07-28 04:27:29 +08:00
|
|
|
|
|
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_D_REGNUM, v);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
if (len > 2)
|
|
|
|
|
{
|
|
|
|
|
v >>= 16;
|
2003-07-28 04:27:29 +08:00
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_X_REGNUM, v);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2003-07-28 04:27:29 +08:00
|
|
|
|
for (argnum = nargs - 1; argnum >= first_stack_argnum; argnum--)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* sparc-tdep.c: Replace VALUE_TYPE with value_type.
* v850-tdep.c, sparc64-tdep.c, sh-tdep.c: Ditto.
* sh64-tdep.c, s390-tdep.c, mcore-tdep.c: Ditto.
* h8300-tdep.c, arm-linux-tdep.c, amd64-tdep.c: Ditto.
* hppa-tdep.c, mips-tdep.c, m88k-tdep.c: Ditto.
* m68hc11-tdep.c, m32r-tdep.c, ia64-tdep.c: Ditto.
* frv-tdep.c, cris-tdep.c, avr-tdep.c, alpha-tdep.c: Ditto.
2004-11-13 10:15:33 +08:00
|
|
|
|
type = value_type (args[argnum]);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
len = TYPE_LENGTH (type);
|
|
|
|
|
|
2000-09-07 03:39:10 +08:00
|
|
|
|
if (len & 1)
|
|
|
|
|
{
|
|
|
|
|
static char zero = 0;
|
|
|
|
|
|
2003-07-28 04:27:29 +08:00
|
|
|
|
sp--;
|
|
|
|
|
write_memory (sp, &zero, 1);
|
2000-09-07 03:39:10 +08:00
|
|
|
|
}
|
2005-02-06 Andrew Cagney <cagney@gnu.org>
* value.c (value_contents, value_contents_writeable): New
functions.
* value.h (VALUE_CONTENTS): Delete macro.
(value_contents, value_contents_writeable): Declare.
* xstormy16-tdep.c, value.c, valops.c, valarith.c: Update.
* stack.c, sparc-tdep.c, sparc64-tdep.c, sh-tdep.c: Update.
* sh64-tdep.c, scm-valprint.c, scm-exp.c, s390-tdep.c: Update.
* rs6000-tdep.c, p-valprint.c, printcmd.c: Update.
* ppc-sysv-tdep.c, mips-tdep.c, mi/mi-main.c: Update.
* m88k-tdep.c, m68hc11-tdep.c, m32r-tdep.c: Update.
* jv-valprint.c, ia64-tdep.c, hppa-tdep.c: Update.
* hpacc-abi.c, f-valprint.c, frv-tdep.c, eval.c: Update.
* c-valprint.c, cris-tdep.c, cp-valprint.c: Update.
* cli/cli-dump.c, breakpoint.c, avr-tdep.c, arm-tdep.c: Update.
* arm-linux-tdep.c, amd64-tdep.c, alpha-tdep.c: Update.
* ada-valprint.c, ada-lang.c: Update.
2005-02-07 08:09:56 +08:00
|
|
|
|
val = (char*) value_contents (args[argnum]);
|
2003-07-28 04:27:29 +08:00
|
|
|
|
sp -= len;
|
|
|
|
|
write_memory (sp, val, len);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
2003-07-28 04:27:29 +08:00
|
|
|
|
|
|
|
|
|
/* Store return address. */
|
|
|
|
|
sp -= 2;
|
|
|
|
|
store_unsigned_integer (buf, 2, bp_addr);
|
|
|
|
|
write_memory (sp, buf, 2);
|
|
|
|
|
|
|
|
|
|
/* Finally, update the stack pointer... */
|
|
|
|
|
sp -= STACK_CORRECTION;
|
|
|
|
|
regcache_cooked_write_unsigned (regcache, HARD_SP_REGNUM, sp);
|
|
|
|
|
|
|
|
|
|
/* ...and fake a frame pointer. */
|
|
|
|
|
regcache_cooked_write_unsigned (regcache, SOFT_FP_REGNUM, sp);
|
|
|
|
|
|
|
|
|
|
/* DWARF2/GCC uses the stack address *before* the function call as a
|
|
|
|
|
frame's CFA. */
|
|
|
|
|
return sp + 2;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2003-07-21 02:36:27 +08:00
|
|
|
|
/* Return the GDB type object for the "standard" data type
|
|
|
|
|
of data in register N. */
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static struct type *
|
2003-07-21 02:36:27 +08:00
|
|
|
|
m68hc11_register_type (struct gdbarch *gdbarch, int reg_nr)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2002-08-14 00:19:22 +08:00
|
|
|
|
switch (reg_nr)
|
|
|
|
|
{
|
|
|
|
|
case HARD_PAGE_REGNUM:
|
|
|
|
|
case HARD_A_REGNUM:
|
|
|
|
|
case HARD_B_REGNUM:
|
|
|
|
|
case HARD_CCR_REGNUM:
|
|
|
|
|
return builtin_type_uint8;
|
|
|
|
|
|
2002-08-14 01:24:50 +08:00
|
|
|
|
case M68HC12_HARD_PC_REGNUM:
|
|
|
|
|
return builtin_type_uint32;
|
|
|
|
|
|
2002-08-14 00:19:22 +08:00
|
|
|
|
default:
|
|
|
|
|
return builtin_type_uint16;
|
|
|
|
|
}
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2003-07-21 02:36:27 +08:00
|
|
|
|
m68hc11_store_return_value (struct type *type, struct regcache *regcache,
|
|
|
|
|
const void *valbuf)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2000-09-07 03:39:10 +08:00
|
|
|
|
int len;
|
|
|
|
|
|
|
|
|
|
len = TYPE_LENGTH (type);
|
|
|
|
|
|
|
|
|
|
/* First argument is passed in D and X registers. */
|
2003-07-21 02:36:27 +08:00
|
|
|
|
if (len <= 2)
|
|
|
|
|
regcache_raw_write_part (regcache, HARD_D_REGNUM, 2 - len, len, valbuf);
|
|
|
|
|
else if (len <= 4)
|
2000-09-07 03:39:10 +08:00
|
|
|
|
{
|
2003-07-21 02:36:27 +08:00
|
|
|
|
regcache_raw_write_part (regcache, HARD_X_REGNUM, 4 - len,
|
|
|
|
|
len - 2, valbuf);
|
|
|
|
|
regcache_raw_write (regcache, HARD_D_REGNUM, (char*) valbuf + (len - 2));
|
2000-09-07 03:39:10 +08:00
|
|
|
|
}
|
|
|
|
|
else
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 12:06:14 +08:00
|
|
|
|
error (_("return of value > 4 is not supported."));
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2003-07-20 22:18:14 +08:00
|
|
|
|
/* Given a return value in `regcache' with a type `type',
|
2000-07-27 15:18:32 +08:00
|
|
|
|
extract and copy its value into `valbuf'. */
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static void
|
2003-07-20 22:18:14 +08:00
|
|
|
|
m68hc11_extract_return_value (struct type *type, struct regcache *regcache,
|
|
|
|
|
void *valbuf)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-08-26 21:36:25 +08:00
|
|
|
|
int len = TYPE_LENGTH (type);
|
2003-07-20 22:18:14 +08:00
|
|
|
|
char buf[M68HC11_REG_SIZE];
|
|
|
|
|
|
|
|
|
|
regcache_raw_read (regcache, HARD_D_REGNUM, buf);
|
2000-09-07 03:39:10 +08:00
|
|
|
|
switch (len)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2000-09-07 03:39:10 +08:00
|
|
|
|
case 1:
|
2003-07-20 22:18:14 +08:00
|
|
|
|
memcpy (valbuf, buf + 1, 1);
|
2000-09-07 03:39:10 +08:00
|
|
|
|
break;
|
2003-07-20 22:18:14 +08:00
|
|
|
|
|
2000-09-07 03:39:10 +08:00
|
|
|
|
case 2:
|
2003-07-20 22:18:14 +08:00
|
|
|
|
memcpy (valbuf, buf, 2);
|
2000-09-07 03:39:10 +08:00
|
|
|
|
break;
|
2003-07-20 22:18:14 +08:00
|
|
|
|
|
2000-09-07 03:39:10 +08:00
|
|
|
|
case 3:
|
2003-07-20 22:18:14 +08:00
|
|
|
|
memcpy ((char*) valbuf + 1, buf, 2);
|
|
|
|
|
regcache_raw_read (regcache, HARD_X_REGNUM, buf);
|
|
|
|
|
memcpy (valbuf, buf + 1, 1);
|
2000-09-07 03:39:10 +08:00
|
|
|
|
break;
|
2003-07-20 22:18:14 +08:00
|
|
|
|
|
2000-09-07 03:39:10 +08:00
|
|
|
|
case 4:
|
2003-07-20 22:18:14 +08:00
|
|
|
|
memcpy ((char*) valbuf + 2, buf, 2);
|
|
|
|
|
regcache_raw_read (regcache, HARD_X_REGNUM, buf);
|
|
|
|
|
memcpy (valbuf, buf, 2);
|
2000-09-07 03:39:10 +08:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 12:06:14 +08:00
|
|
|
|
error (_("bad size for return value"));
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2004-06-13 21:42:33 +08:00
|
|
|
|
enum return_value_convention
|
|
|
|
|
m68hc11_return_value (struct gdbarch *gdbarch, struct type *valtype,
|
2005-11-11 18:25:34 +08:00
|
|
|
|
struct regcache *regcache, gdb_byte *readbuf,
|
|
|
|
|
const gdb_byte *writebuf)
|
2000-08-26 21:36:25 +08:00
|
|
|
|
{
|
2004-06-13 21:42:33 +08:00
|
|
|
|
if (TYPE_CODE (valtype) == TYPE_CODE_STRUCT
|
|
|
|
|
|| TYPE_CODE (valtype) == TYPE_CODE_UNION
|
|
|
|
|
|| TYPE_CODE (valtype) == TYPE_CODE_ARRAY
|
|
|
|
|
|| TYPE_LENGTH (valtype) > 4)
|
|
|
|
|
return RETURN_VALUE_STRUCT_CONVENTION;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (readbuf != NULL)
|
|
|
|
|
m68hc11_extract_return_value (valtype, regcache, readbuf);
|
|
|
|
|
if (writebuf != NULL)
|
|
|
|
|
m68hc11_store_return_value (valtype, regcache, writebuf);
|
|
|
|
|
return RETURN_VALUE_REGISTER_CONVENTION;
|
|
|
|
|
}
|
2000-08-26 21:36:25 +08:00
|
|
|
|
}
|
|
|
|
|
|
2002-08-14 00:40:46 +08:00
|
|
|
|
/* Test whether the ELF symbol corresponds to a function using rtc or
|
|
|
|
|
rti to return. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
|
|
|
|
|
{
|
|
|
|
|
unsigned char flags;
|
|
|
|
|
|
|
|
|
|
flags = ((elf_symbol_type *)sym)->internal_elf_sym.st_other;
|
|
|
|
|
if (flags & STO_M68HC12_FAR)
|
|
|
|
|
MSYMBOL_SET_RTC (msym);
|
|
|
|
|
if (flags & STO_M68HC12_INTERRUPT)
|
|
|
|
|
MSYMBOL_SET_RTI (msym);
|
|
|
|
|
}
|
|
|
|
|
|
2000-11-25 05:24:04 +08:00
|
|
|
|
static int
|
|
|
|
|
gdb_print_insn_m68hc11 (bfd_vma memaddr, disassemble_info *info)
|
|
|
|
|
{
|
2007-06-14 01:53:51 +08:00
|
|
|
|
if (gdbarch_bfd_arch_info (current_gdbarch)->arch == bfd_arch_m68hc11)
|
2000-11-25 05:24:04 +08:00
|
|
|
|
return print_insn_m68hc11 (memaddr, info);
|
|
|
|
|
else
|
|
|
|
|
return print_insn_m68hc12 (memaddr, info);
|
|
|
|
|
}
|
|
|
|
|
|
2003-02-22 23:59:49 +08:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* 68HC11/68HC12 register groups.
|
|
|
|
|
Identify real hard registers and soft registers used by gcc. */
|
|
|
|
|
|
|
|
|
|
static struct reggroup *m68hc11_soft_reggroup;
|
|
|
|
|
static struct reggroup *m68hc11_hard_reggroup;
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_init_reggroups (void)
|
|
|
|
|
{
|
|
|
|
|
m68hc11_hard_reggroup = reggroup_new ("hard", USER_REGGROUP);
|
|
|
|
|
m68hc11_soft_reggroup = reggroup_new ("soft", USER_REGGROUP);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
m68hc11_add_reggroups (struct gdbarch *gdbarch)
|
|
|
|
|
{
|
|
|
|
|
reggroup_add (gdbarch, m68hc11_hard_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, m68hc11_soft_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, general_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, float_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, all_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, save_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, restore_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, vector_reggroup);
|
|
|
|
|
reggroup_add (gdbarch, system_reggroup);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
m68hc11_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
|
|
|
|
|
struct reggroup *group)
|
|
|
|
|
{
|
|
|
|
|
/* We must save the real hard register as well as gcc
|
|
|
|
|
soft registers including the frame pointer. */
|
|
|
|
|
if (group == save_reggroup || group == restore_reggroup)
|
|
|
|
|
{
|
|
|
|
|
return (regnum <= gdbarch_num_regs (gdbarch)
|
|
|
|
|
|| ((regnum == SOFT_FP_REGNUM
|
|
|
|
|
|| regnum == SOFT_TMP_REGNUM
|
|
|
|
|
|| regnum == SOFT_ZS_REGNUM
|
|
|
|
|
|| regnum == SOFT_XY_REGNUM)
|
|
|
|
|
&& m68hc11_register_name (regnum)));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Group to identify gcc soft registers (d1..dN). */
|
|
|
|
|
if (group == m68hc11_soft_reggroup)
|
|
|
|
|
{
|
|
|
|
|
return regnum >= SOFT_D1_REGNUM && m68hc11_register_name (regnum);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (group == m68hc11_hard_reggroup)
|
|
|
|
|
{
|
|
|
|
|
return regnum == HARD_PC_REGNUM || regnum == HARD_SP_REGNUM
|
|
|
|
|
|| regnum == HARD_X_REGNUM || regnum == HARD_D_REGNUM
|
|
|
|
|
|| regnum == HARD_Y_REGNUM || regnum == HARD_CCR_REGNUM;
|
|
|
|
|
}
|
|
|
|
|
return default_register_reggroup_p (gdbarch, regnum, group);
|
|
|
|
|
}
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
static struct gdbarch *
|
|
|
|
|
m68hc11_gdbarch_init (struct gdbarch_info info,
|
|
|
|
|
struct gdbarch_list *arches)
|
|
|
|
|
{
|
|
|
|
|
struct gdbarch *gdbarch;
|
|
|
|
|
struct gdbarch_tdep *tdep;
|
2002-08-13 21:10:42 +08:00
|
|
|
|
int elf_flags;
|
2000-08-26 21:36:25 +08:00
|
|
|
|
|
|
|
|
|
soft_reg_initialized = 0;
|
2002-08-13 21:10:42 +08:00
|
|
|
|
|
|
|
|
|
/* Extract the elf_flags if available. */
|
|
|
|
|
if (info.abfd != NULL
|
|
|
|
|
&& bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
|
|
|
|
|
elf_flags = elf_elfheader (info.abfd)->e_flags;
|
|
|
|
|
else
|
|
|
|
|
elf_flags = 0;
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
/* try to find a pre-existing architecture */
|
|
|
|
|
for (arches = gdbarch_list_lookup_by_info (arches, &info);
|
|
|
|
|
arches != NULL;
|
|
|
|
|
arches = gdbarch_list_lookup_by_info (arches->next, &info))
|
|
|
|
|
{
|
2002-08-13 21:10:42 +08:00
|
|
|
|
if (gdbarch_tdep (arches->gdbarch)->elf_flags != elf_flags)
|
|
|
|
|
continue;
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
return arches->gdbarch;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Need a new architecture. Fill in a target specific vector. */
|
|
|
|
|
tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
|
|
|
|
|
gdbarch = gdbarch_alloc (&info, tdep);
|
2002-08-13 21:10:42 +08:00
|
|
|
|
tdep->elf_flags = elf_flags;
|
2000-12-03 01:13:44 +08:00
|
|
|
|
|
2000-11-25 04:59:42 +08:00
|
|
|
|
switch (info.bfd_arch_info->arch)
|
|
|
|
|
{
|
|
|
|
|
case bfd_arch_m68hc11:
|
|
|
|
|
tdep->stack_correction = 1;
|
2002-08-14 00:40:46 +08:00
|
|
|
|
tdep->use_page_register = 0;
|
2000-12-03 00:55:37 +08:00
|
|
|
|
tdep->prologue = m6811_prologue;
|
2002-08-14 01:24:50 +08:00
|
|
|
|
set_gdbarch_addr_bit (gdbarch, 16);
|
|
|
|
|
set_gdbarch_num_pseudo_regs (gdbarch, M68HC11_NUM_PSEUDO_REGS);
|
|
|
|
|
set_gdbarch_pc_regnum (gdbarch, HARD_PC_REGNUM);
|
|
|
|
|
set_gdbarch_num_regs (gdbarch, M68HC11_NUM_REGS);
|
2000-11-25 04:59:42 +08:00
|
|
|
|
break;
|
2000-08-26 21:36:25 +08:00
|
|
|
|
|
2000-11-25 04:59:42 +08:00
|
|
|
|
case bfd_arch_m68hc12:
|
|
|
|
|
tdep->stack_correction = 0;
|
2002-08-14 00:40:46 +08:00
|
|
|
|
tdep->use_page_register = elf_flags & E_M68HC12_BANKS;
|
2000-12-03 00:55:37 +08:00
|
|
|
|
tdep->prologue = m6812_prologue;
|
2002-08-14 01:24:50 +08:00
|
|
|
|
set_gdbarch_addr_bit (gdbarch, elf_flags & E_M68HC12_BANKS ? 32 : 16);
|
|
|
|
|
set_gdbarch_num_pseudo_regs (gdbarch,
|
|
|
|
|
elf_flags & E_M68HC12_BANKS
|
|
|
|
|
? M68HC12_NUM_PSEUDO_REGS
|
|
|
|
|
: M68HC11_NUM_PSEUDO_REGS);
|
|
|
|
|
set_gdbarch_pc_regnum (gdbarch, elf_flags & E_M68HC12_BANKS
|
|
|
|
|
? M68HC12_HARD_PC_REGNUM : HARD_PC_REGNUM);
|
|
|
|
|
set_gdbarch_num_regs (gdbarch, elf_flags & E_M68HC12_BANKS
|
|
|
|
|
? M68HC12_NUM_REGS : M68HC11_NUM_REGS);
|
2000-11-25 04:59:42 +08:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
2001-07-22 20:37:02 +08:00
|
|
|
|
|
|
|
|
|
/* Initially set everything according to the ABI.
|
|
|
|
|
Use 16-bit integers since it will be the case for most
|
|
|
|
|
programs. The size of these types should normally be set
|
|
|
|
|
according to the dwarf2 debug information. */
|
2000-08-26 21:36:25 +08:00
|
|
|
|
set_gdbarch_short_bit (gdbarch, 16);
|
2002-08-13 21:10:42 +08:00
|
|
|
|
set_gdbarch_int_bit (gdbarch, elf_flags & E_M68HC11_I32 ? 32 : 16);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
set_gdbarch_float_bit (gdbarch, 32);
|
2002-08-13 21:10:42 +08:00
|
|
|
|
set_gdbarch_double_bit (gdbarch, elf_flags & E_M68HC11_F64 ? 64 : 32);
|
2003-02-24 04:24:17 +08:00
|
|
|
|
set_gdbarch_long_double_bit (gdbarch, 64);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
set_gdbarch_long_bit (gdbarch, 32);
|
|
|
|
|
set_gdbarch_ptr_bit (gdbarch, 16);
|
|
|
|
|
set_gdbarch_long_long_bit (gdbarch, 64);
|
|
|
|
|
|
2003-06-24 04:06:37 +08:00
|
|
|
|
/* Characters are unsigned. */
|
|
|
|
|
set_gdbarch_char_signed (gdbarch, 0);
|
|
|
|
|
|
2003-07-28 05:24:41 +08:00
|
|
|
|
set_gdbarch_unwind_pc (gdbarch, m68hc11_unwind_pc);
|
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|
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set_gdbarch_unwind_sp (gdbarch, m68hc11_unwind_sp);
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2000-08-26 21:36:25 +08:00
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/* Set register info. */
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set_gdbarch_fp0_regnum (gdbarch, -1);
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set_gdbarch_sp_regnum (gdbarch, HARD_SP_REGNUM);
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set_gdbarch_register_name (gdbarch, m68hc11_register_name);
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2003-07-21 02:36:27 +08:00
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set_gdbarch_register_type (gdbarch, m68hc11_register_type);
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2002-08-03 23:56:23 +08:00
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set_gdbarch_pseudo_register_read (gdbarch, m68hc11_pseudo_register_read);
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set_gdbarch_pseudo_register_write (gdbarch, m68hc11_pseudo_register_write);
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2000-08-26 21:36:25 +08:00
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|
2003-07-28 04:27:29 +08:00
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set_gdbarch_push_dummy_call (gdbarch, m68hc11_push_dummy_call);
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|
|
|
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|
2004-06-13 21:42:33 +08:00
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set_gdbarch_return_value (gdbarch, m68hc11_return_value);
|
2000-08-26 21:36:25 +08:00
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set_gdbarch_skip_prologue (gdbarch, m68hc11_skip_prologue);
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|
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|
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set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
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set_gdbarch_breakpoint_from_pc (gdbarch, m68hc11_breakpoint_from_pc);
|
2002-03-07 04:07:47 +08:00
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|
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set_gdbarch_print_insn (gdbarch, gdb_print_insn_m68hc11);
|
2000-08-26 21:36:25 +08:00
|
|
|
|
|
2003-02-22 23:59:49 +08:00
|
|
|
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m68hc11_add_reggroups (gdbarch);
|
|
|
|
|
set_gdbarch_register_reggroup_p (gdbarch, m68hc11_register_reggroup_p);
|
2003-07-25 03:59:33 +08:00
|
|
|
|
set_gdbarch_print_registers_info (gdbarch, m68hc11_print_registers_info);
|
2003-02-22 23:59:49 +08:00
|
|
|
|
|
2003-07-28 05:24:41 +08:00
|
|
|
|
/* Hook in the DWARF CFI frame unwinder. */
|
|
|
|
|
frame_unwind_append_sniffer (gdbarch, dwarf2_frame_sniffer);
|
|
|
|
|
|
2003-08-19 01:35:16 +08:00
|
|
|
|
frame_unwind_append_sniffer (gdbarch, m68hc11_frame_sniffer);
|
2003-07-28 05:24:41 +08:00
|
|
|
|
frame_base_set_default (gdbarch, &m68hc11_frame_base);
|
|
|
|
|
|
|
|
|
|
/* Methods for saving / extracting a dummy frame's ID. The ID's
|
|
|
|
|
stack address must match the SP value returned by
|
|
|
|
|
PUSH_DUMMY_CALL, and saved by generic_save_dummy_frame_tos. */
|
|
|
|
|
set_gdbarch_unwind_dummy_id (gdbarch, m68hc11_unwind_dummy_id);
|
|
|
|
|
|
|
|
|
|
/* Return the unwound PC value. */
|
|
|
|
|
set_gdbarch_unwind_pc (gdbarch, m68hc11_unwind_pc);
|
|
|
|
|
|
2002-08-14 00:40:46 +08:00
|
|
|
|
/* Minsymbol frobbing. */
|
|
|
|
|
set_gdbarch_elf_make_msymbol_special (gdbarch,
|
|
|
|
|
m68hc11_elf_make_msymbol_special);
|
|
|
|
|
|
2000-08-26 21:36:25 +08:00
|
|
|
|
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
|
|
|
|
|
|
|
|
|
|
return gdbarch;
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
2003-06-11 21:16:30 +08:00
|
|
|
|
extern initialize_file_ftype _initialize_m68hc11_tdep; /* -Wmissing-prototypes */
|
|
|
|
|
|
2000-07-27 15:18:32 +08:00
|
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
_initialize_m68hc11_tdep (void)
|
2000-07-27 15:18:32 +08:00
|
|
|
|
{
|
2000-08-26 21:36:25 +08:00
|
|
|
|
register_gdbarch_init (bfd_arch_m68hc11, m68hc11_gdbarch_init);
|
2000-11-25 05:24:04 +08:00
|
|
|
|
register_gdbarch_init (bfd_arch_m68hc12, m68hc11_gdbarch_init);
|
2003-02-22 23:59:49 +08:00
|
|
|
|
m68hc11_init_reggroups ();
|
2000-07-27 15:18:32 +08:00
|
|
|
|
}
|
|
|
|
|
|