/* Target-dependent code for Motorola 68HC11 & 68HC12
- Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
Contributed by Stephane Carrez, stcarrez@nerim.fr
This file is part of GDB.
#include "objfiles.h"
#include "arch-utils.h"
#include "regcache.h"
+#include "reggroups.h"
#include "target.h"
#include "opcode/m68hc11.h"
static CORE_ADDR
m68hc11_frame_saved_pc (struct frame_info *frame)
{
- return frame->extra_info->return_pc;
+ return get_frame_extra_info (frame)->return_pc;
}
static CORE_ADDR
{
CORE_ADDR addr;
- addr = frame->frame + frame->extra_info->size + STACK_CORRECTION + 2;
- if (frame->extra_info->return_kind == RETURN_RTC)
+ addr = get_frame_base (frame) + get_frame_extra_info (frame)->size + STACK_CORRECTION + 2;
+ if (get_frame_extra_info (frame)->return_kind == RETURN_RTC)
addr += 1;
- else if (frame->extra_info->return_kind == RETURN_RTI)
+ else if (get_frame_extra_info (frame)->return_kind == RETURN_RTI)
addr += 7;
return addr;
static CORE_ADDR
m68hc11_frame_locals_address (struct frame_info *frame)
{
- return frame->frame;
+ return get_frame_base (frame);
}
/* Discard from the stack the innermost frame, restoring all saved
register CORE_ADDR fp, sp;
register int regnum;
- if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame),
+ get_frame_base (frame),
+ get_frame_base (frame)))
generic_pop_dummy_frame ();
else
{
fp = get_frame_base (frame);
- FRAME_INIT_SAVED_REGS (frame);
+ DEPRECATED_FRAME_INIT_SAVED_REGS (frame);
/* Copy regs from where they were saved in the frame. */
for (regnum = 0; regnum < M68HC11_ALL_REGS; regnum++)
write_register (regnum,
read_memory_integer (get_frame_saved_regs (frame)[regnum], 2));
- write_register (HARD_PC_REGNUM, frame->extra_info->return_pc);
- sp = (fp + frame->extra_info->size + 2) & 0x0ffff;
+ write_register (HARD_PC_REGNUM, get_frame_extra_info (frame)->return_pc);
+ sp = (fp + get_frame_extra_info (frame)->size + 2) & 0x0ffff;
write_register (HARD_SP_REGNUM, sp);
}
flush_cached_frames ();
/* 68HC11 opcodes. */
#undef M6811_OP_PAGE2
-#define M6811_OP_PAGE2 (0x18)
-#define M6811_OP_LDX (0xde)
-#define M6811_OP_PSHX (0x3c)
-#define M6811_OP_STS (0x9f)
-#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)
+#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)
/* 68HC12 opcodes. */
-#define M6812_OP_PAGE2 (0x18)
-#define M6812_OP_MOVW (0x01)
-#define M6812_PB_PSHW (0xae)
-#define M6812_OP_STS (0x7f)
-#define M6812_OP_LEAS (0x1b)
-#define M6812_OP_PSHX (0x34)
-#define M6812_OP_PSHY (0x35)
+#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)
/* Operand extraction. */
#define OP_DIRECT (0x100) /* 8-byte direct addressing. */
M6811_OP_PSHX } },
{ P_SAVE_REG, 5, { M6811_OP_PAGE2, M6811_OP_LDX, OP_DIRECT,
M6811_OP_PAGE2, M6811_OP_PSHX } },
+ { 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 } },
/* Sequences to allocate local variables. */
{ P_LOCAL_N, 7, { M6811_OP_TSX,
/* Initialize the frame pointer. */
{ P_SET_FRAME, 2, { M6811_OP_STS, OP_DIRECT } },
+ { P_SET_FRAME, 3, { M6811_OP_STS_EXT, OP_IMM_HIGH, OP_IMM_LOW } },
{ P_LAST, 0, { 0 } }
};
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 } },
- { P_SET_FRAME, 3, { M6812_OP_STS, OP_IMM_HIGH, OP_IMM_LOW } },
+ { P_SET_FRAME, 2, { M6812_OP_STS, OP_DIRECT } },
+ { P_SET_FRAME, 3, { M6812_OP_STS_EXT, OP_IMM_HIGH, OP_IMM_LOW } },
{ P_LOCAL_N, 2, { M6812_OP_LEAS, OP_PBYTE } },
{ P_LOCAL_2, 1, { M6812_OP_PSHX } },
{ P_LOCAL_2, 1, { M6812_OP_PSHY } },
/* Given a GDB frame, determine the address of the calling function's
frame. This will be used to create a new GDB frame struct, and
- then INIT_EXTRA_FRAME_INFO and DEPRECATED_INIT_FRAME_PC will be
- called for the new frame. */
+ then DEPRECATED_INIT_EXTRA_FRAME_INFO and DEPRECATED_INIT_FRAME_PC
+ will be called for the new frame. */
static CORE_ADDR
m68hc11_frame_chain (struct frame_info *frame)
{
CORE_ADDR addr;
- if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
- return frame->frame; /* dummy frame same as caller's frame */
+ if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame),
+ get_frame_base (frame),
+ get_frame_base (frame)))
+ return get_frame_base (frame); /* dummy frame same as caller's frame */
- if (frame->extra_info->return_pc == 0
- || inside_entry_file (frame->extra_info->return_pc))
+ if (get_frame_extra_info (frame)->return_pc == 0
+ || inside_entry_file (get_frame_extra_info (frame)->return_pc))
return (CORE_ADDR) 0;
- if (frame->frame == 0)
+ if (get_frame_base (frame) == 0)
{
return (CORE_ADDR) 0;
}
- addr = frame->frame + frame->extra_info->size + STACK_CORRECTION - 2;
+ addr = get_frame_base (frame) + get_frame_extra_info (frame)->size + STACK_CORRECTION - 2;
addr = read_memory_unsigned_integer (addr, 2) & 0x0FFFF;
return addr;
}
memset (get_frame_saved_regs (fi), 0, SIZEOF_FRAME_SAVED_REGS);
pc = get_frame_pc (fi);
- fi->extra_info->return_kind = m68hc11_get_return_insn (pc);
- m68hc11_guess_from_prologue (pc, fi->frame, &pc, &fi->extra_info->size,
+ get_frame_extra_info (fi)->return_kind = m68hc11_get_return_insn (pc);
+ m68hc11_guess_from_prologue (pc, get_frame_base (fi), &pc,
+ &get_frame_extra_info (fi)->size,
get_frame_saved_regs (fi));
- addr = fi->frame + fi->extra_info->size + STACK_CORRECTION;
+ addr = get_frame_base (fi) + get_frame_extra_info (fi)->size + STACK_CORRECTION;
if (soft_regs[SOFT_FP_REGNUM].name)
get_frame_saved_regs (fi)[SOFT_FP_REGNUM] = addr - 2;
/* Take into account how the function was called/returns. */
- if (fi->extra_info->return_kind == RETURN_RTC)
+ if (get_frame_extra_info (fi)->return_kind == RETURN_RTC)
{
get_frame_saved_regs (fi)[HARD_PAGE_REGNUM] = addr;
addr++;
}
- else if (fi->extra_info->return_kind == RETURN_RTI)
+ else if (get_frame_extra_info (fi)->return_kind == RETURN_RTI)
{
get_frame_saved_regs (fi)[HARD_CCR_REGNUM] = addr;
get_frame_saved_regs (fi)[HARD_D_REGNUM] = addr + 1;
{
CORE_ADDR addr;
- fi->extra_info = (struct frame_extra_info *)
- frame_obstack_alloc (sizeof (struct frame_extra_info));
+ frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
- if (fi->next)
- deprecated_update_frame_pc_hack (fi, FRAME_SAVED_PC (fi->next));
+ if (get_next_frame (fi))
+ deprecated_update_frame_pc_hack (fi, DEPRECATED_FRAME_SAVED_PC (get_next_frame (fi)));
m68hc11_frame_init_saved_regs (fi);
if (fromleaf)
{
- fi->extra_info->return_kind = m68hc11_get_return_insn (get_frame_pc (fi));
- fi->extra_info->return_pc = m68hc11_saved_pc_after_call (fi);
+ get_frame_extra_info (fi)->return_kind = m68hc11_get_return_insn (get_frame_pc (fi));
+ get_frame_extra_info (fi)->return_pc = m68hc11_saved_pc_after_call (fi);
}
else
{
addr = read_memory_unsigned_integer (addr, 2) & 0x0ffff;
/* Take into account the 68HC12 specific call (PC + page). */
- if (fi->extra_info->return_kind == RETURN_RTC
+ if (get_frame_extra_info (fi)->return_kind == RETURN_RTC
&& addr >= 0x08000 && addr < 0x0c000
&& USE_PAGE_REGISTER)
{
addr += ((page & 0x0ff) << 14);
addr += 0x1000000;
}
- fi->extra_info->return_pc = addr;
+ get_frame_extra_info (fi)->return_pc = addr;
}
}
return print_insn_m68hc12 (memaddr, info);
}
+\f
+
+/* 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);
+}
+
static struct gdbarch *
m68hc11_gdbarch_init (struct gdbarch_info info,
struct gdbarch_list *arches)
set_gdbarch_int_bit (gdbarch, elf_flags & E_M68HC11_I32 ? 32 : 16);
set_gdbarch_float_bit (gdbarch, 32);
set_gdbarch_double_bit (gdbarch, elf_flags & E_M68HC11_F64 ? 64 : 32);
- set_gdbarch_long_double_bit (gdbarch, elf_flags & E_M68HC11_F64 ? 64 : 32);
+ set_gdbarch_long_double_bit (gdbarch, 64);
set_gdbarch_long_bit (gdbarch, 32);
set_gdbarch_ptr_bit (gdbarch, 16);
set_gdbarch_long_long_bit (gdbarch, 64);
/* Set register info. */
set_gdbarch_fp0_regnum (gdbarch, -1);
- set_gdbarch_max_register_raw_size (gdbarch, 2);
- set_gdbarch_max_register_virtual_size (gdbarch, 2);
- set_gdbarch_frame_init_saved_regs (gdbarch, m68hc11_frame_init_saved_regs);
+ set_gdbarch_deprecated_max_register_raw_size (gdbarch, 2);
+ set_gdbarch_deprecated_max_register_virtual_size (gdbarch, 2);
+ set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, m68hc11_frame_init_saved_regs);
set_gdbarch_frame_args_skip (gdbarch, 0);
set_gdbarch_read_pc (gdbarch, generic_target_read_pc);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
set_gdbarch_read_fp (gdbarch, generic_target_read_fp);
set_gdbarch_read_sp (gdbarch, generic_target_read_sp);
- set_gdbarch_write_sp (gdbarch, generic_target_write_sp);
+ set_gdbarch_deprecated_dummy_write_sp (gdbarch, generic_target_write_sp);
set_gdbarch_sp_regnum (gdbarch, HARD_SP_REGNUM);
set_gdbarch_fp_regnum (gdbarch, SOFT_FP_REGNUM);
set_gdbarch_pseudo_register_read (gdbarch, m68hc11_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, m68hc11_pseudo_register_write);
- set_gdbarch_call_dummy_length (gdbarch, 0);
set_gdbarch_call_dummy_address (gdbarch, m68hc11_call_dummy_address);
- set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1); /*???*/
- set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
- set_gdbarch_call_dummy_start_offset (gdbarch, 0);
set_gdbarch_call_dummy_words (gdbarch, m68hc11_call_dummy_words);
set_gdbarch_sizeof_call_dummy_words (gdbarch,
sizeof (m68hc11_call_dummy_words));
- set_gdbarch_call_dummy_p (gdbarch, 1);
- set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
- set_gdbarch_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
- set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy);
+ set_gdbarch_deprecated_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
set_gdbarch_deprecated_extract_return_value (gdbarch, m68hc11_extract_return_value);
- set_gdbarch_push_arguments (gdbarch, m68hc11_push_arguments);
- set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
- set_gdbarch_push_return_address (gdbarch, m68hc11_push_return_address);
+ set_gdbarch_deprecated_push_arguments (gdbarch, m68hc11_push_arguments);
+ set_gdbarch_deprecated_push_return_address (gdbarch, m68hc11_push_return_address);
set_gdbarch_return_value_on_stack (gdbarch, m68hc11_return_value_on_stack);
- set_gdbarch_store_struct_return (gdbarch, m68hc11_store_struct_return);
+ set_gdbarch_deprecated_store_struct_return (gdbarch, m68hc11_store_struct_return);
set_gdbarch_deprecated_store_return_value (gdbarch, m68hc11_store_return_value);
set_gdbarch_deprecated_extract_struct_value_address (gdbarch, m68hc11_extract_struct_value_address);
set_gdbarch_register_convertible (gdbarch, generic_register_convertible_not);
- set_gdbarch_frame_chain (gdbarch, m68hc11_frame_chain);
- set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
- set_gdbarch_frame_saved_pc (gdbarch, m68hc11_frame_saved_pc);
+ set_gdbarch_deprecated_frame_chain (gdbarch, m68hc11_frame_chain);
+ set_gdbarch_deprecated_frame_saved_pc (gdbarch, m68hc11_frame_saved_pc);
set_gdbarch_frame_args_address (gdbarch, m68hc11_frame_args_address);
set_gdbarch_frame_locals_address (gdbarch, m68hc11_frame_locals_address);
set_gdbarch_saved_pc_after_call (gdbarch, m68hc11_saved_pc_after_call);
set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
- set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
- set_gdbarch_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
+ set_gdbarch_deprecated_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
- set_gdbarch_store_struct_return (gdbarch, m68hc11_store_struct_return);
+ set_gdbarch_deprecated_store_struct_return (gdbarch, m68hc11_store_struct_return);
set_gdbarch_deprecated_store_return_value (gdbarch, m68hc11_store_return_value);
set_gdbarch_deprecated_extract_struct_value_address
(gdbarch, m68hc11_extract_struct_value_address);
set_gdbarch_use_struct_convention (gdbarch, m68hc11_use_struct_convention);
- set_gdbarch_init_extra_frame_info (gdbarch, m68hc11_init_extra_frame_info);
- set_gdbarch_pop_frame (gdbarch, m68hc11_pop_frame);
+ set_gdbarch_deprecated_init_extra_frame_info (gdbarch, m68hc11_init_extra_frame_info);
+ set_gdbarch_deprecated_pop_frame (gdbarch, m68hc11_pop_frame);
set_gdbarch_skip_prologue (gdbarch, m68hc11_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_decr_pc_after_break (gdbarch, 0);
set_gdbarch_function_start_offset (gdbarch, 0);
set_gdbarch_breakpoint_from_pc (gdbarch, m68hc11_breakpoint_from_pc);
set_gdbarch_stack_align (gdbarch, m68hc11_stack_align);
+ set_gdbarch_deprecated_extra_stack_alignment_needed (gdbarch, 1);
set_gdbarch_print_insn (gdbarch, gdb_print_insn_m68hc11);
+ m68hc11_add_reggroups (gdbarch);
+ set_gdbarch_register_reggroup_p (gdbarch, m68hc11_register_reggroup_p);
+
/* Minsymbol frobbing. */
set_gdbarch_elf_make_msymbol_special (gdbarch,
m68hc11_elf_make_msymbol_special);
{
register_gdbarch_init (bfd_arch_m68hc11, m68hc11_gdbarch_init);
register_gdbarch_init (bfd_arch_m68hc12, m68hc11_gdbarch_init);
+ m68hc11_init_reggroups ();
add_com ("regs", class_vars, show_regs, "Print all registers");
}
projects / deliverable / binutils-gdb.git / blobdiff