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* h8300-tdep.c (E_PSEUDO_CCR_REGNUM): New define.
(E_PSEUDO_EXR_REGNUM): Ditto. (h8300_is_argument_spill): Check for instructions moving argument registers into safe registers. (h8300_skip_prologue): Check for stm instruction to push registers used for register variables onto stack. (gdb_print_insn_h8300): Remove. (h8300_examine_prologue): Add a comment. (h8300_register_name): Take pseudo registers into account. (h8300s_register_name): Ditto. (h8300sx_register_name): Ditto. (h8300_print_register): Ditto. (h8300_print_registers_info): Define "nice" printing order. (h8300_saved_pc_after_call): Take pseudo registers into account. (h8300_register_type): Ditto. Return type used for remote connection when requesting real CCR or EXR register, return actual type when requesting pseudo CCR or EXR. (h8300_pseudo_register_read): New function. (h8300_pseudo_register_write): Ditto. (h8300_dbg_reg_to_regnum): Ditto. (h8300s_dbg_reg_to_regnum): Ditto. (h8300_gdbarch_init): Call set_gdbarch_num_pseudo_regs, set_gdbarch_ecoff_reg_to_regnum, set_gdbarch_dwarf_reg_to_regnum, set_gdbarch_dwarf2_reg_to_regnum, set_gdbarch_stab_reg_to_regnum and set_gdbarch_print_insn architecture dependent. Call set_gdbarch_pseudo_register_read and set_gdbarch_pseudo_register_write. (_initialize_h8300_tdep): Remove assignment to deprecated_tm_print_insn.
This commit is contained in:
Corinna Vinschen
parent
b24da7d033
commit
4bb1dc5eb2
@ -1,3 +1,34 @@
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2003-06-16 Corinna Vinschen <vinschen@redhat.com>
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* h8300-tdep.c (E_PSEUDO_CCR_REGNUM): New define.
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(E_PSEUDO_EXR_REGNUM): Ditto.
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(h8300_is_argument_spill): Check for instructions moving argument
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registers into safe registers.
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(h8300_skip_prologue): Check for stm instruction to push registers
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used for register variables onto stack.
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(gdb_print_insn_h8300): Remove.
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(h8300_examine_prologue): Add a comment.
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(h8300_register_name): Take pseudo registers into account.
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(h8300s_register_name): Ditto.
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(h8300sx_register_name): Ditto.
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(h8300_print_register): Ditto.
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(h8300_print_registers_info): Define "nice" printing order.
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(h8300_saved_pc_after_call): Take pseudo registers into account.
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(h8300_register_type): Ditto. Return type used for remote connection
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when requesting real CCR or EXR register, return actual type when
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requesting pseudo CCR or EXR.
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(h8300_pseudo_register_read): New function.
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(h8300_pseudo_register_write): Ditto.
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(h8300_dbg_reg_to_regnum): Ditto.
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(h8300s_dbg_reg_to_regnum): Ditto.
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(h8300_gdbarch_init): Call set_gdbarch_num_pseudo_regs,
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set_gdbarch_ecoff_reg_to_regnum, set_gdbarch_dwarf_reg_to_regnum,
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set_gdbarch_dwarf2_reg_to_regnum, set_gdbarch_stab_reg_to_regnum and
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set_gdbarch_print_insn architecture dependent.
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Call set_gdbarch_pseudo_register_read and
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set_gdbarch_pseudo_register_write.
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(_initialize_h8300_tdep): Remove assignment to deprecated_tm_print_insn.
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2003-06-16 Andrew Cagney <cagney@redhat.com>
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* gdbarch.sh (SAVE_DUMMY_FRAME_TOS): Deprecate.
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183
gdb/h8300-tdep.c
183
gdb/h8300-tdep.c
@ -73,6 +73,9 @@ enum gdb_regnum
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E_VBR_REGNUM
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};
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#define E_PSEUDO_CCR_REGNUM (NUM_REGS)
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#define E_PSEUDO_EXR_REGNUM (NUM_REGS+1)
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#define UNSIGNED_SHORT(X) ((X) & 0xffff)
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#define IS_PUSH(x) ((x & 0xfff0)==0x6df0)
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@ -91,13 +94,23 @@ enum gdb_regnum
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An argument register spill is an instruction that moves an argument
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from the register in which it was passed to the stack slot in which
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it really lives. It is a byte, word, or longword move from an
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argument register to a negative offset from the frame pointer. */
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argument register to a negative offset from the frame pointer.
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CV, 2003-06-16: Or, in optimized code or when the `register' qualifier
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is used, it could be a byte, word or long move to registers r3-r5. */
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static int
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h8300_is_argument_spill (CORE_ADDR pc)
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{
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int w = read_memory_unsigned_integer (pc, 2);
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if (((w & 0xff88) == 0x0c88 /* mov.b Rsl, Rdl */
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|| (w & 0xff88) == 0x0d00 /* mov.w Rs, Rd */
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|| (w & 0xff88) == 0x0f80) /* mov.l Rs, Rd */
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&& (w & 0x70) <= 0x20 /* Rs is R0, R1 or R2 */
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&& (w & 0x7) >= 0x3 && (w & 0x7) <= 0x5)/* Rd is R3, R4 or R5 */
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return 2;
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if ((w & 0xfff0) == 0x6ee0 /* mov.b Rs,@(d:16,er6) */
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&& 8 <= (w & 0xf) && (w & 0xf) <= 10) /* Rs is R0L, R1L, or R2L */
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{
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@ -240,6 +253,17 @@ h8300_skip_prologue (CORE_ADDR start_pc)
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if (IS_SUBL_SP (w))
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start_pc += 6 + adjust;
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/* Skip past another possible stm insn for registers R3 to R5 (possibly used
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for register qualified arguments. */
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w = read_memory_unsigned_integer (start_pc, 2);
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/* First look for push insns. */
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if (w == 0x0110 || w == 0x0120 || w == 0x0130)
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{
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w = read_memory_unsigned_integer (start_pc + 2, 2);
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if (IS_PUSH (w) && (w & 0xf) >= 0x3 && (w & 0xf) <= 0x5)
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start_pc += 4;
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}
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/* Check for spilling an argument register to the stack frame.
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This could also be an initializing store from non-prologue code,
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but I don't think there's any harm in skipping that. */
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@ -254,17 +278,6 @@ h8300_skip_prologue (CORE_ADDR start_pc)
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return start_pc;
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}
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static int
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gdb_print_insn_h8300 (bfd_vma memaddr, disassemble_info * info)
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{
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if (h8300smode)
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return print_insn_h8300s (memaddr, info);
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else if (h8300hmode)
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return print_insn_h8300h (memaddr, info);
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else
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return print_insn_h8300 (memaddr, info);
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}
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/* Fetch the instruction at ADDR, returning 0 if ADDR is beyond LIM or
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is not the address of a valid instruction, the address of the next
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instruction beyond ADDR otherwise. *PWORD1 receives the first word
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@ -341,7 +354,7 @@ h8300_examine_prologue (register CORE_ADDR ip, register CORE_ADDR limit,
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next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
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if (insn_word == 0x0100)
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if (insn_word == 0x0100) /* mov.l */
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{
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insn_word = read_memory_unsigned_integer (ip + 2, 2);
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adjust = 2;
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@ -878,7 +891,8 @@ h8300_register_name (int regno)
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type is selected. */
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static char *register_names[] = {
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"r0", "r1", "r2", "r3", "r4", "r5", "r6",
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"sp", "ccr","pc","cycles", "tick", "inst", ""
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"sp", "","pc","cycles", "tick", "inst",
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"ccr", /* pseudo register */
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};
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if (regno < 0
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|| regno >= (sizeof (register_names) / sizeof (*register_names)))
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@ -893,7 +907,9 @@ h8300s_register_name (int regno)
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{
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static char *register_names[] = {
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"er0", "er1", "er2", "er3", "er4", "er5", "er6",
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"sp", "ccr", "pc", "cycles", "exr", "tick", "inst"
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"sp", "", "pc", "cycles", "", "tick", "inst",
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//"mach", "macl",
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"ccr", "exr" /* pseudo registers */
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};
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if (regno < 0
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|| regno >= (sizeof (register_names) / sizeof (*register_names)))
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@ -908,8 +924,9 @@ h8300sx_register_name (int regno)
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{
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static char *register_names[] = {
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"er0", "er1", "er2", "er3", "er4", "er5", "er6",
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"sp", "ccr", "pc", "cycles", "exr", "tick", "inst",
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"mach", "macl", "sbr", "vbr"
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"sp", "", "pc", "cycles", "", "tick", "inst",
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"mach", "macl", "sbr", "vbr",
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"ccr", "exr" /* pseudo registers */
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};
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if (regno < 0
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|| regno >= (sizeof (register_names) / sizeof (*register_names)))
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@ -932,7 +949,7 @@ h8300_print_register (struct gdbarch *gdbarch, struct ui_file *file,
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frame_read_signed_register (frame, regno, &rval);
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fprintf_filtered (file, "%-14s ", name);
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if (regno == E_CCR_REGNUM || (regno == E_EXR_REGNUM && h8300smode))
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if (regno == E_PSEUDO_CCR_REGNUM || (regno == E_PSEUDO_EXR_REGNUM && h8300smode))
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{
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fprintf_filtered (file, "0x%02x ", (unsigned char)rval);
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print_longest (file, 'u', 1, rval);
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@ -942,7 +959,7 @@ h8300_print_register (struct gdbarch *gdbarch, struct ui_file *file,
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fprintf_filtered (file, "0x%s ", phex ((ULONGEST)rval, BINWORD));
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print_longest (file, 'd', 1, rval);
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}
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if (regno == E_CCR_REGNUM)
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if (regno == E_PSEUDO_CCR_REGNUM)
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{
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/* CCR register */
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int C, Z, N, V;
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@ -981,7 +998,7 @@ h8300_print_register (struct gdbarch *gdbarch, struct ui_file *file,
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if ((Z | (N ^ V)) == 1)
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fprintf_filtered (file, "<= ");
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}
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else if (regno == E_EXR_REGNUM && h8300smode)
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else if (regno == E_PSEUDO_EXR_REGNUM && h8300smode)
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{
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/* EXR register */
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unsigned char l = rval & 0xff;
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@ -999,10 +1016,41 @@ h8300_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file,
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struct frame_info *frame, int regno, int cpregs)
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{
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if (regno < 0)
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for (regno = 0; regno < NUM_REGS; ++regno)
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h8300_print_register (gdbarch, file, frame, regno);
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{
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for (regno = E_R0_REGNUM; regno <= E_SP_REGNUM; ++regno)
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h8300_print_register (gdbarch, file, frame, regno);
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h8300_print_register (gdbarch, file, frame, E_PSEUDO_CCR_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_PC_REGNUM);
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if (h8300smode)
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{
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h8300_print_register (gdbarch, file, frame, E_PSEUDO_EXR_REGNUM);
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if (h8300sxmode)
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{
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h8300_print_register (gdbarch, file, frame, E_SBR_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_VBR_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_MACH_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_MACL_REGNUM);
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}
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h8300_print_register (gdbarch, file, frame, E_CYCLES_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_TICKS_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_INSTS_REGNUM);
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}
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else
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{
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h8300_print_register (gdbarch, file, frame, E_CYCLES_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_TICK_REGNUM);
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h8300_print_register (gdbarch, file, frame, E_INST_REGNUM);
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}
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}
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else
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h8300_print_register (gdbarch, file, frame, regno);
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{
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if (regno == E_CCR_REGNUM)
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h8300_print_register (gdbarch, file, frame, E_PSEUDO_CCR_REGNUM);
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else if (regno == E_PSEUDO_EXR_REGNUM && h8300smode)
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h8300_print_register (gdbarch, file, frame, E_PSEUDO_EXR_REGNUM);
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else
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h8300_print_register (gdbarch, file, frame, regno);
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}
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}
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static CORE_ADDR
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@ -1014,7 +1062,7 @@ h8300_saved_pc_after_call (struct frame_info *ignore)
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static struct type *
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h8300_register_type (struct gdbarch *gdbarch, int regno)
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{
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if (regno < 0 || regno >= NUM_REGS)
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if (regno < 0 || regno >= NUM_REGS + NUM_PSEUDO_REGS)
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internal_error (__FILE__, __LINE__,
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"h8300_register_type: illegal register number %d",
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regno);
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@ -1027,19 +1075,61 @@ h8300_register_type (struct gdbarch *gdbarch, int regno)
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case E_SP_REGNUM:
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case E_FP_REGNUM:
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return builtin_type_void_data_ptr;
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case E_CCR_REGNUM:
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return builtin_type_uint8;
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case E_EXR_REGNUM:
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if (h8300smode)
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return builtin_type_uint8;
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/*FALLTHRU*/
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default:
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return h8300hmode ? builtin_type_int32
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: builtin_type_int16;
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if (regno == E_PSEUDO_CCR_REGNUM)
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return builtin_type_uint8;
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else if (regno == E_PSEUDO_EXR_REGNUM)
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return builtin_type_uint8;
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else if (h8300hmode)
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return builtin_type_int32;
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else
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return builtin_type_int16;
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}
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}
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}
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static void
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h8300_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
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int regno, void *buf)
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{
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if (regno == E_PSEUDO_CCR_REGNUM)
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regcache_raw_read (regcache, E_CCR_REGNUM, buf);
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else if (regno == E_PSEUDO_EXR_REGNUM)
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regcache_raw_read (regcache, E_EXR_REGNUM, buf);
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else
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regcache_raw_read (regcache, regno, buf);
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}
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static void
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h8300_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
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int regno, const void *buf)
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{
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if (regno == E_PSEUDO_CCR_REGNUM)
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regcache_raw_write (regcache, E_CCR_REGNUM, buf);
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else if (regno == E_PSEUDO_EXR_REGNUM)
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regcache_raw_write (regcache, E_EXR_REGNUM, buf);
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else
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regcache_raw_write (regcache, regno, buf);
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}
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static int
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h8300_dbg_reg_to_regnum (int regno)
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{
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if (regno == E_CCR_REGNUM)
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return E_PSEUDO_CCR_REGNUM;
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return regno;
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}
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static int
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h8300s_dbg_reg_to_regnum (int regno)
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{
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if (regno == E_CCR_REGNUM)
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return E_PSEUDO_CCR_REGNUM;
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if (regno == E_EXR_REGNUM)
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return E_PSEUDO_EXR_REGNUM;
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return regno;
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}
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static CORE_ADDR
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h8300_extract_struct_value_address (struct regcache *regcache)
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{
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@ -1108,11 +1198,17 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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h8300smode = 0;
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h8300hmode = 0;
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set_gdbarch_num_regs (gdbarch, 13);
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set_gdbarch_num_pseudo_regs (gdbarch, 1);
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set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_dwarf_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_stab_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_register_name (gdbarch, h8300_register_name);
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set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
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set_gdbarch_addr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
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set_gdbarch_extract_return_value (gdbarch, h8300_extract_return_value);
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set_gdbarch_store_return_value (gdbarch, h8300_store_return_value);
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set_gdbarch_print_insn (gdbarch, print_insn_h8300);
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break;
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case bfd_mach_h8300h:
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case bfd_mach_h8300hn:
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@ -1120,11 +1216,17 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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h8300smode = 0;
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h8300hmode = 1;
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set_gdbarch_num_regs (gdbarch, 13);
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set_gdbarch_num_pseudo_regs (gdbarch, 1);
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set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_dwarf_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_stab_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
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set_gdbarch_register_name (gdbarch, h8300_register_name);
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set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
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set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
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set_gdbarch_extract_return_value (gdbarch, h8300h_extract_return_value);
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set_gdbarch_store_return_value (gdbarch, h8300h_store_return_value);
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set_gdbarch_print_insn (gdbarch, print_insn_h8300h);
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break;
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case bfd_mach_h8300s:
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case bfd_mach_h8300sn:
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@ -1132,11 +1234,17 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
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h8300smode = 1;
|
||||
h8300hmode = 1;
|
||||
set_gdbarch_num_regs (gdbarch, 14);
|
||||
set_gdbarch_num_pseudo_regs (gdbarch, 2);
|
||||
set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_dwarf_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_stab_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_register_name (gdbarch, h8300s_register_name);
|
||||
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
||||
set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
||||
set_gdbarch_extract_return_value (gdbarch, h8300h_extract_return_value);
|
||||
set_gdbarch_store_return_value (gdbarch, h8300h_store_return_value);
|
||||
set_gdbarch_print_insn (gdbarch, print_insn_h8300s);
|
||||
break;
|
||||
case bfd_mach_h8300sx:
|
||||
case bfd_mach_h8300sxn:
|
||||
@ -1144,14 +1252,23 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
|
||||
h8300smode = 1;
|
||||
h8300hmode = 1;
|
||||
set_gdbarch_num_regs (gdbarch, 18);
|
||||
set_gdbarch_num_pseudo_regs (gdbarch, 2);
|
||||
set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_dwarf_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_stab_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
||||
set_gdbarch_register_name (gdbarch, h8300sx_register_name);
|
||||
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
||||
set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
||||
set_gdbarch_extract_return_value (gdbarch, h8300h_extract_return_value);
|
||||
set_gdbarch_store_return_value (gdbarch, h8300h_store_return_value);
|
||||
set_gdbarch_print_insn (gdbarch, print_insn_h8300s);
|
||||
break;
|
||||
}
|
||||
|
||||
set_gdbarch_pseudo_register_read (gdbarch, h8300_pseudo_register_read);
|
||||
set_gdbarch_pseudo_register_write (gdbarch, h8300_pseudo_register_write);
|
||||
|
||||
/* NOTE: cagney/2002-12-06: This can be deleted when this arch is
|
||||
ready to unwind the PC first (see frame.c:get_prev_frame()). */
|
||||
set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_default);
|
||||
@ -1160,7 +1277,6 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
|
||||
* Basic register fields and methods.
|
||||
*/
|
||||
|
||||
set_gdbarch_num_pseudo_regs (gdbarch, 0);
|
||||
set_gdbarch_sp_regnum (gdbarch, E_SP_REGNUM);
|
||||
set_gdbarch_deprecated_fp_regnum (gdbarch, E_FP_REGNUM);
|
||||
set_gdbarch_pc_regnum (gdbarch, E_PC_REGNUM);
|
||||
@ -1232,6 +1348,5 @@ extern initialize_file_ftype _initialize_h8300_tdep; /* -Wmissing-prototypes */
|
||||
void
|
||||
_initialize_h8300_tdep (void)
|
||||
{
|
||||
deprecated_tm_print_insn = gdb_print_insn_h8300;
|
||||
register_gdbarch_init (bfd_arch_h8300, h8300_gdbarch_init);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user