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-rw-r--r--gdb/h8300-tdep.c1383
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diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
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--- a/gdb/h8300-tdep.c
+++ /dev/null
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-/* Target-machine dependent code for Renesas H8/300, for GDB.
-
- Copyright 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
-
- This file is part of GDB.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-/*
- Contributed by Steve Chamberlain
- sac@cygnus.com
- */
-
-#include "defs.h"
-#include "value.h"
-#include "inferior.h"
-#include "symfile.h"
-#include "arch-utils.h"
-#include "regcache.h"
-#include "gdbcore.h"
-#include "objfiles.h"
-#include "gdbcmd.h"
-#include "gdb_assert.h"
-#include "dis-asm.h"
-
-/* Extra info which is saved in each frame_info. */
-struct frame_extra_info
-{
- CORE_ADDR from_pc;
-};
-
-enum
-{
- h8300_reg_size = 2,
- h8300h_reg_size = 4,
- h8300_max_reg_size = 4,
-};
-
-static int is_h8300hmode (struct gdbarch *gdbarch);
-static int is_h8300smode (struct gdbarch *gdbarch);
-static int is_h8300sxmode (struct gdbarch *gdbarch);
-static int is_h8300_normal_mode (struct gdbarch *gdbarch);
-
-#define BINWORD (is_h8300hmode (current_gdbarch) && \
- !is_h8300_normal_mode (current_gdbarch) ? h8300h_reg_size : h8300_reg_size)
-
-enum gdb_regnum
-{
- E_R0_REGNUM, E_ER0_REGNUM = E_R0_REGNUM, E_ARG0_REGNUM = E_R0_REGNUM,
- E_RET0_REGNUM = E_R0_REGNUM,
- E_R1_REGNUM, E_ER1_REGNUM = E_R1_REGNUM, E_RET1_REGNUM = E_R1_REGNUM,
- E_R2_REGNUM, E_ER2_REGNUM = E_R2_REGNUM, E_ARGLAST_REGNUM = E_R2_REGNUM,
- E_R3_REGNUM, E_ER3_REGNUM = E_R3_REGNUM,
- E_R4_REGNUM, E_ER4_REGNUM = E_R4_REGNUM,
- E_R5_REGNUM, E_ER5_REGNUM = E_R5_REGNUM,
- E_R6_REGNUM, E_ER6_REGNUM = E_R6_REGNUM, E_FP_REGNUM = E_R6_REGNUM,
- E_SP_REGNUM,
- E_CCR_REGNUM,
- E_PC_REGNUM,
- E_CYCLES_REGNUM,
- E_TICK_REGNUM, E_EXR_REGNUM = E_TICK_REGNUM,
- E_INST_REGNUM, E_TICKS_REGNUM = E_INST_REGNUM,
- E_INSTS_REGNUM,
- E_MACH_REGNUM,
- E_MACL_REGNUM,
- E_SBR_REGNUM,
- E_VBR_REGNUM
-};
-
-#define E_PSEUDO_CCR_REGNUM (NUM_REGS)
-#define E_PSEUDO_EXR_REGNUM (NUM_REGS+1)
-
-#define UNSIGNED_SHORT(X) ((X) & 0xffff)
-
-#define IS_PUSH(x) ((x & 0xfff0)==0x6df0)
-#define IS_PUSH_FP(x) (x == 0x6df6)
-#define IS_MOVE_FP(x) (x == 0x0d76 || x == 0x0ff6)
-#define IS_MOV_SP_FP(x) (x == 0x0d76 || x == 0x0ff6)
-#define IS_SUB2_SP(x) (x==0x1b87)
-#define IS_SUB4_SP(x) (x==0x1b97)
-#define IS_SUBL_SP(x) (x==0x7a37)
-#define IS_MOVK_R5(x) (x==0x7905)
-#define IS_SUB_R5SP(x) (x==0x1957)
-
-/* If the instruction at PC is an argument register spill, return its
- length. Otherwise, return zero.
-
- An argument register spill is an instruction that moves an argument
- from the register in which it was passed to the stack slot in which
- it really lives. It is a byte, word, or longword move from an
- argument register to a negative offset from the frame pointer.
-
- CV, 2003-06-16: Or, in optimized code or when the `register' qualifier
- is used, it could be a byte, word or long move to registers r3-r5. */
-
-static int
-h8300_is_argument_spill (CORE_ADDR pc)
-{
- int w = read_memory_unsigned_integer (pc, 2);
-
- if (((w & 0xff88) == 0x0c88 /* mov.b Rsl, Rdl */
- || (w & 0xff88) == 0x0d00 /* mov.w Rs, Rd */
- || (w & 0xff88) == 0x0f80) /* mov.l Rs, Rd */
- && (w & 0x70) <= 0x20 /* Rs is R0, R1 or R2 */
- && (w & 0x7) >= 0x3 && (w & 0x7) <= 0x5)/* Rd is R3, R4 or R5 */
- return 2;
-
- if ((w & 0xfff0) == 0x6ee0 /* mov.b Rs,@(d:16,er6) */
- && 8 <= (w & 0xf) && (w & 0xf) <= 10) /* Rs is R0L, R1L, or R2L */
- {
- int w2 = read_memory_integer (pc + 2, 2);
-
- /* ... and d:16 is negative. */
- if (w2 < 0)
- return 4;
- }
- else if (w == 0x7860)
- {
- int w2 = read_memory_integer (pc + 2, 2);
-
- if ((w2 & 0xfff0) == 0x6aa0) /* mov.b Rs, @(d:24,er6) */
- {
- LONGEST disp = read_memory_integer (pc + 4, 4);
-
- /* ... and d:24 is negative. */
- if (disp < 0 && disp > 0xffffff)
- return 8;
- }
- }
- else if ((w & 0xfff0) == 0x6fe0 /* mov.w Rs,@(d:16,er6) */
- && (w & 0xf) <= 2) /* Rs is R0, R1, or R2 */
- {
- int w2 = read_memory_integer (pc + 2, 2);
-
- /* ... and d:16 is negative. */
- if (w2 < 0)
- return 4;
- }
- else if (w == 0x78e0)
- {
- int w2 = read_memory_integer (pc + 2, 2);
-
- if ((w2 & 0xfff0) == 0x6ba0) /* mov.b Rs, @(d:24,er6) */
- {
- LONGEST disp = read_memory_integer (pc + 4, 4);
-
- /* ... and d:24 is negative. */
- if (disp < 0 && disp > 0xffffff)
- return 8;
- }
- }
- else if (w == 0x0100)
- {
- int w2 = read_memory_integer (pc + 2, 2);
-
- if ((w2 & 0xfff0) == 0x6fe0 /* mov.l Rs,@(d:16,er6) */
- && (w2 & 0xf) <= 2) /* Rs is ER0, ER1, or ER2 */
- {
- int w3 = read_memory_integer (pc + 4, 2);
-
- /* ... and d:16 is negative. */
- if (w3 < 0)
- return 6;
- }
- else if (w2 == 0x78e0)
- {
- int w3 = read_memory_integer (pc + 4, 2);
-
- if ((w3 & 0xfff0) == 0x6ba0) /* mov.l Rs, @(d:24,er6) */
- {
- LONGEST disp = read_memory_integer (pc + 6, 4);
-
- /* ... and d:24 is negative. */
- if (disp < 0 && disp > 0xffffff)
- return 10;
- }
- }
- }
-
- return 0;
-}
-
-static CORE_ADDR
-h8300_skip_prologue (CORE_ADDR start_pc)
-{
- short int w;
- int adjust = 0;
-
- /* Skip past all push and stm insns. */
- while (1)
- {
- w = read_memory_unsigned_integer (start_pc, 2);
- /* First look for push insns. */
- if (w == 0x0100 || w == 0x0110 || w == 0x0120 || w == 0x0130)
- {
- w = read_memory_unsigned_integer (start_pc + 2, 2);
- adjust = 2;
- }
-
- if (IS_PUSH (w))
- {
- start_pc += 2 + adjust;
- w = read_memory_unsigned_integer (start_pc, 2);
- continue;
- }
- adjust = 0;
- break;
- }
-
- /* Skip past a move to FP, either word or long sized */
- w = read_memory_unsigned_integer (start_pc, 2);
- if (w == 0x0100)
- {
- w = read_memory_unsigned_integer (start_pc + 2, 2);
- adjust += 2;
- }
-
- if (IS_MOVE_FP (w))
- {
- start_pc += 2 + adjust;
- w = read_memory_unsigned_integer (start_pc, 2);
- }
-
- /* Check for loading either a word constant into r5;
- long versions are handled by the SUBL_SP below. */
- if (IS_MOVK_R5 (w))
- {
- start_pc += 2;
- w = read_memory_unsigned_integer (start_pc, 2);
- }
-
- /* Now check for subtracting r5 from sp, word sized only. */
- if (IS_SUB_R5SP (w))
- {
- start_pc += 2 + adjust;
- w = read_memory_unsigned_integer (start_pc, 2);
- }
-
- /* Check for subs #2 and subs #4. */
- while (IS_SUB2_SP (w) || IS_SUB4_SP (w))
- {
- start_pc += 2 + adjust;
- w = read_memory_unsigned_integer (start_pc, 2);
- }
-
- /* Check for a 32bit subtract. */
- if (IS_SUBL_SP (w))
- start_pc += 6 + adjust;
-
- /* Skip past another possible stm insn for registers R3 to R5 (possibly used
- for register qualified arguments. */
- w = read_memory_unsigned_integer (start_pc, 2);
- /* First look for push insns. */
- if (w == 0x0110 || w == 0x0120 || w == 0x0130)
- {
- w = read_memory_unsigned_integer (start_pc + 2, 2);
- if (IS_PUSH (w) && (w & 0xf) >= 0x3 && (w & 0xf) <= 0x5)
- start_pc += 4;
- }
-
- /* Check for spilling an argument register to the stack frame.
- This could also be an initializing store from non-prologue code,
- but I don't think there's any harm in skipping that. */
- for (;;)
- {
- int spill_size = h8300_is_argument_spill (start_pc);
- if (spill_size == 0)
- break;
- start_pc += spill_size;
- }
-
- return start_pc;
-}
-
-/* Fetch the instruction at ADDR, returning 0 if ADDR is beyond LIM or
- is not the address of a valid instruction, the address of the next
- instruction beyond ADDR otherwise. *PWORD1 receives the first word
- of the instruction. */
-
-static CORE_ADDR
-h8300_next_prologue_insn (CORE_ADDR addr,
- CORE_ADDR lim,
- unsigned short* pword1)
-{
- char buf[2];
- if (addr < lim + 8)
- {
- read_memory (addr, buf, 2);
- *pword1 = extract_signed_integer (buf, 2);
-
- return addr + 2;
- }
- return 0;
-}
-
-/* Examine the prologue of a function. `ip' points to the first instruction.
- `limit' is the limit of the prologue (e.g. the addr of the first
- linenumber, or perhaps the program counter if we're stepping through).
- `frame_sp' is the stack pointer value in use in this frame.
- `fsr' is a pointer to a frame_saved_regs structure into which we put
- info about the registers saved by this frame.
- `fi' is a struct frame_info pointer; we fill in various fields in it
- to reflect the offsets of the arg pointer and the locals pointer. */
-
-/* Any function with a frame looks like this
- SECOND ARG
- FIRST ARG
- RET PC
- SAVED R2
- SAVED R3
- SAVED FP <-FP POINTS HERE
- LOCALS0
- LOCALS1 <-SP POINTS HERE
- */
-
-static CORE_ADDR
-h8300_examine_prologue (CORE_ADDR ip, CORE_ADDR limit,
- CORE_ADDR after_prolog_fp, CORE_ADDR *fsr,
- struct frame_info *fi)
-{
- CORE_ADDR next_ip;
- int r;
- int have_fp = 0;
- unsigned short insn_word;
- /* Number of things pushed onto stack, starts at 2/4, 'cause the
- PC is already there */
- unsigned int reg_save_depth = BINWORD;
-
- unsigned int auto_depth = 0; /* Number of bytes of autos */
-
- char in_frame[11]; /* One for each reg */
-
- int adjust = 0;
-
- memset (in_frame, 1, 11);
- for (r = 0; r < 8; r++)
- {
- fsr[r] = 0;
- }
- if (after_prolog_fp == 0)
- {
- after_prolog_fp = read_register (E_SP_REGNUM);
- }
-
- /* If the PC isn't valid, quit now. */
- if (ip == 0 || ip & (is_h8300hmode (current_gdbarch) &&
- !is_h8300_normal_mode (current_gdbarch) ? ~0xffffff : ~0xffff))
- return 0;
-
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
-
- if (insn_word == 0x0100) /* mov.l */
- {
- insn_word = read_memory_unsigned_integer (ip + 2, 2);
- adjust = 2;
- }
-
- /* Skip over any fp push instructions */
- fsr[E_FP_REGNUM] = after_prolog_fp;
- while (next_ip && IS_PUSH_FP (insn_word))
- {
- ip = next_ip + adjust;
-
- in_frame[insn_word & 0x7] = reg_save_depth;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- reg_save_depth += 2 + adjust;
- }
-
- /* Is this a move into the fp */
- if (next_ip && IS_MOV_SP_FP (insn_word))
- {
- ip = next_ip;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- have_fp = 1;
- }
-
- /* Skip over any stack adjustment, happens either with a number of
- sub#2,sp or a mov #x,r5 sub r5,sp */
-
- if (next_ip && (IS_SUB2_SP (insn_word) || IS_SUB4_SP (insn_word)))
- {
- while (next_ip && (IS_SUB2_SP (insn_word) || IS_SUB4_SP (insn_word)))
- {
- auto_depth += IS_SUB2_SP (insn_word) ? 2 : 4;
- ip = next_ip;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- }
- }
- else
- {
- if (next_ip && IS_MOVK_R5 (insn_word))
- {
- ip = next_ip;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- auto_depth += insn_word;
-
- next_ip = h8300_next_prologue_insn (next_ip, limit, &insn_word);
- auto_depth += insn_word;
- }
- if (next_ip && IS_SUBL_SP (insn_word))
- {
- ip = next_ip;
- auto_depth += read_memory_unsigned_integer (ip, 4);
- ip += 4;
-
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- }
- }
-
- /* Now examine the push insns to determine where everything lives
- on the stack. */
- while (1)
- {
- adjust = 0;
- if (!next_ip)
- break;
-
- if (insn_word == 0x0100)
- {
- ip = next_ip;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- adjust = 2;
- }
-
- if (IS_PUSH (insn_word))
- {
- auto_depth += 2 + adjust;
- fsr[insn_word & 0x7] = after_prolog_fp - auto_depth;
- ip = next_ip;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- continue;
- }
-
- /* Now check for push multiple insns. */
- if (insn_word == 0x0110 || insn_word == 0x0120 || insn_word == 0x0130)
- {
- int count = ((insn_word >> 4) & 0xf) + 1;
- int start, i;
-
- ip = next_ip;
- next_ip = h8300_next_prologue_insn (ip, limit, &insn_word);
- start = insn_word & 0x7;
-
- for (i = start; i < start + count; i++)
- {
- auto_depth += 4;
- fsr[i] = after_prolog_fp - auto_depth;
- }
- }
- break;
- }
-
- /* The PC is at a known place */
- get_frame_extra_info (fi)->from_pc =
- read_memory_unsigned_integer (after_prolog_fp + BINWORD, BINWORD);
-
- /* Rememeber any others too */
- in_frame[E_PC_REGNUM] = 0;
-
- if (have_fp)
- /* We keep the old FP in the SP spot */
- fsr[E_SP_REGNUM] = read_memory_unsigned_integer (fsr[E_FP_REGNUM],
- BINWORD);
- else
- fsr[E_SP_REGNUM] = after_prolog_fp + auto_depth;
-
- return (ip);
-}
-
-static void
-h8300_frame_init_saved_regs (struct frame_info *fi)
-{
- CORE_ADDR func_addr, func_end;
-
- if (!deprecated_get_frame_saved_regs (fi))
- {
- frame_saved_regs_zalloc (fi);
-
- /* Find the beginning of this function, so we can analyze its
- prologue. */
- if (find_pc_partial_function (get_frame_pc (fi), NULL,
- &func_addr, &func_end))
- {
- struct symtab_and_line sal = find_pc_line (func_addr, 0);
- CORE_ADDR limit = (sal.end && sal.end < get_frame_pc (fi))
- ? sal.end : get_frame_pc (fi);
- /* This will fill in fields in fi. */
- h8300_examine_prologue (func_addr, limit, get_frame_base (fi),
- deprecated_get_frame_saved_regs (fi), fi);
- }
- /* Else we're out of luck (can't debug completely stripped code).
- FIXME. */
- }
-}
-
-/* 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 DEPRECATED_INIT_EXTRA_FRAME_INFO and DEPRECATED_INIT_FRAME_PC
- will be called for the new frame.
-
- For us, the frame address is its stack pointer value, so we look up
- the function prologue to determine the caller's sp value, and
- return it. */
-
-static CORE_ADDR
-h8300_frame_chain (struct frame_info *thisframe)
-{
- if (deprecated_pc_in_call_dummy (get_frame_pc (thisframe)))
- { /* initialize the from_pc now */
- get_frame_extra_info (thisframe)->from_pc =
- deprecated_read_register_dummy (get_frame_pc (thisframe),
- get_frame_base (thisframe),
- E_PC_REGNUM);
- return get_frame_base (thisframe);
- }
- return deprecated_get_frame_saved_regs (thisframe)[E_SP_REGNUM];
-}
-
-/* Return the saved PC from this frame.
-
- If the frame has a memory copy of SRP_REGNUM, use that. If not,
- just use the register SRP_REGNUM itself. */
-
-static CORE_ADDR
-h8300_frame_saved_pc (struct frame_info *frame)
-{
- if (deprecated_pc_in_call_dummy (get_frame_pc (frame)))
- return deprecated_read_register_dummy (get_frame_pc (frame),
- get_frame_base (frame),
- E_PC_REGNUM);
- else
- return get_frame_extra_info (frame)->from_pc;
-}
-
-static void
-h8300_init_extra_frame_info (int fromleaf, struct frame_info *fi)
-{
- if (!get_frame_extra_info (fi))
- {
- frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
- get_frame_extra_info (fi)->from_pc = 0;
-
- if (!get_frame_pc (fi))
- {
- if (get_next_frame (fi))
- deprecated_update_frame_pc_hack (fi, h8300_frame_saved_pc (get_next_frame (fi)));
- }
- h8300_frame_init_saved_regs (fi);
- }
-}
-
-/* Function: push_dummy_call
- Setup the function arguments for calling a function in the inferior.
- In this discussion, a `word' is 16 bits on the H8/300s, and 32 bits
- on the H8/300H.
-
- There are actually two ABI's here: -mquickcall (the default) and
- -mno-quickcall. With -mno-quickcall, all arguments are passed on
- the stack after the return address, word-aligned. With
- -mquickcall, GCC tries to use r0 -- r2 to pass registers. Since
- GCC doesn't indicate in the object file which ABI was used to
- compile it, GDB only supports the default --- -mquickcall.
-
- Here are the rules for -mquickcall, in detail:
-
- Each argument, whether scalar or aggregate, is padded to occupy a
- whole number of words. Arguments smaller than a word are padded at
- the most significant end; those larger than a word are padded at
- the least significant end.
-
- The initial arguments are passed in r0 -- r2. Earlier arguments go in
- lower-numbered registers. Multi-word arguments are passed in
- consecutive registers, with the most significant end in the
- lower-numbered register.
-
- If an argument doesn't fit entirely in the remaining registers, it
- is passed entirely on the stack. Stack arguments begin just after
- the return address. Once an argument has overflowed onto the stack
- this way, all subsequent arguments are passed on the stack.
-
- The above rule has odd consequences. For example, on the h8/300s,
- if a function takes two longs and an int as arguments:
- - the first long will be passed in r0/r1,
- - the second long will be passed entirely on the stack, since it
- doesn't fit in r2,
- - and the int will be passed on the stack, even though it could fit
- in r2.
-
- A weird exception: if an argument is larger than a word, but not a
- whole number of words in length (before padding), it is passed on
- the stack following the rules for stack arguments above, even if
- there are sufficient registers available to hold it. Stranger
- still, the argument registers are still `used up' --- even though
- there's nothing in them.
-
- So, for example, on the h8/300s, if a function expects a three-byte
- structure and an int, the structure will go on the stack, and the
- int will go in r2, not r0.
-
- If the function returns an aggregate type (struct, union, or class)
- by value, the caller must allocate space to hold the return value,
- and pass the callee a pointer to this space as an invisible first
- argument, in R0.
-
- For varargs functions, the last fixed argument and all the variable
- arguments are always passed on the stack. This means that calls to
- varargs functions don't work properly unless there is a prototype
- in scope.
-
- Basically, this ABI is not good, for the following reasons:
- - You can't call vararg functions properly unless a prototype is in scope.
- - Structure passing is inconsistent, to no purpose I can see.
- - It often wastes argument registers, of which there are only three
- to begin with. */
-
-static CORE_ADDR
-h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
- struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
- struct value **args, CORE_ADDR sp, int struct_return,
- CORE_ADDR struct_addr)
-{
- int stack_alloc = 0, stack_offset = 0;
- int wordsize = BINWORD;
- int reg = E_ARG0_REGNUM;
- int argument;
-
- /* First, make sure the stack is properly aligned. */
- sp = align_down (sp, wordsize);
-
- /* Now make sure there's space on the stack for the arguments. We
- may over-allocate a little here, but that won't hurt anything. */
- for (argument = 0; argument < nargs; argument++)
- stack_alloc += align_up (TYPE_LENGTH (value_type (args[argument])),
- wordsize);
- sp -= stack_alloc;
-
- /* Now load as many arguments as possible into registers, and push
- the rest onto the stack.
- If we're returning a structure by value, then we must pass a
- pointer to the buffer for the return value as an invisible first
- argument. */
- if (struct_return)
- regcache_cooked_write_unsigned (regcache, reg++, struct_addr);
-
- for (argument = 0; argument < nargs; argument++)
- {
- struct type *type = value_type (args[argument]);
- int len = TYPE_LENGTH (type);
- char *contents = (char *) VALUE_CONTENTS (args[argument]);
-
- /* Pad the argument appropriately. */
- int padded_len = align_up (len, wordsize);
- char *padded = alloca (padded_len);
-
- memset (padded, 0, padded_len);
- memcpy (len < wordsize ? padded + padded_len - len : padded,
- contents, len);
-
- /* Could the argument fit in the remaining registers? */
- if (padded_len <= (E_ARGLAST_REGNUM - reg + 1) * wordsize)
- {
- /* Are we going to pass it on the stack anyway, for no good
- reason? */
- if (len > wordsize && len % wordsize)
- {
- /* I feel so unclean. */
- write_memory (sp + stack_offset, padded, padded_len);
- stack_offset += padded_len;
-
- /* That's right --- even though we passed the argument
- on the stack, we consume the registers anyway! Love
- me, love my dog. */
- reg += padded_len / wordsize;
- }
- else
- {
- /* Heavens to Betsy --- it's really going in registers!
- It would be nice if we could use write_register_bytes
- here, but on the h8/300s, there are gaps between
- the registers in the register file. */
- int offset;
-
- for (offset = 0; offset < padded_len; offset += wordsize)
- {
- ULONGEST word = extract_unsigned_integer (padded + offset,
- wordsize);
- regcache_cooked_write_unsigned (regcache, reg++, word);
- }
- }
- }
- else
- {
- /* It doesn't fit in registers! Onto the stack it goes. */
- write_memory (sp + stack_offset, padded, padded_len);
- stack_offset += padded_len;
-
- /* Once one argument has spilled onto the stack, all
- subsequent arguments go on the stack. */
- reg = E_ARGLAST_REGNUM + 1;
- }
- }
-
- /* Store return address. */
- sp -= wordsize;
- write_memory_unsigned_integer (sp, wordsize, bp_addr);
-
- /* Update stack pointer. */
- regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
-
- return sp;
-}
-
-/* Function: h8300_pop_frame
- Restore the machine to the state it had before the current frame
- was created. Usually used either by the "RETURN" command, or by
- call_function_by_hand after the dummy_frame is finished. */
-
-static void
-h8300_pop_frame (void)
-{
- unsigned regno;
- struct frame_info *frame = get_current_frame ();
-
- if (deprecated_pc_in_call_dummy (get_frame_pc (frame)))
- {
- deprecated_pop_dummy_frame ();
- }
- else
- {
- for (regno = 0; regno < 8; regno++)
- {
- /* Don't forget E_SP_REGNUM is a frame_saved_regs struct is the
- actual value we want, not the address of the value we want. */
- if (deprecated_get_frame_saved_regs (frame)[regno] && regno != E_SP_REGNUM)
- write_register (regno,
- read_memory_integer
- (deprecated_get_frame_saved_regs (frame)[regno], BINWORD));
- else if (deprecated_get_frame_saved_regs (frame)[regno] && regno == E_SP_REGNUM)
- write_register (regno, get_frame_base (frame) + 2 * BINWORD);
- }
-
- /* Don't forget to update the PC too! */
- write_register (E_PC_REGNUM, get_frame_extra_info (frame)->from_pc);
- }
- flush_cached_frames ();
-}
-
-/* Function: extract_return_value
- Figure out where in REGBUF the called function has left its return value.
- Copy that into VALBUF. Be sure to account for CPU type. */
-
-static void
-h8300_extract_return_value (struct type *type, struct regcache *regcache,
- void *valbuf)
-{
- int len = TYPE_LENGTH (type);
- ULONGEST c, addr;
-
- switch (len)
- {
- case 1:
- case 2:
- regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, len, c);
- break;
- case 4: /* Needs two registers on plain H8/300 */
- regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, 2, c);
- regcache_cooked_read_unsigned (regcache, E_RET1_REGNUM, &c);
- store_unsigned_integer ((void*)((char *)valbuf + 2), 2, c);
- break;
- case 8: /* long long is now 8 bytes. */
- if (TYPE_CODE (type) == TYPE_CODE_INT)
- {
- regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &addr);
- c = read_memory_unsigned_integer ((CORE_ADDR) addr, len);
- store_unsigned_integer (valbuf, len, c);
- }
- else
- {
- error ("I don't know how this 8 byte value is returned.");
- }
- break;
- }
-}
-
-static void
-h8300h_extract_return_value (struct type *type, struct regcache *regcache,
- void *valbuf)
-{
- int len = TYPE_LENGTH (type);
- ULONGEST c, addr;
-
- switch (len)
- {
- case 1:
- case 2:
- case 4:
- regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, len, c);
- break;
- case 8: /* long long is now 8 bytes. */
- if (TYPE_CODE (type) == TYPE_CODE_INT)
- {
- regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &addr);
- c = read_memory_unsigned_integer ((CORE_ADDR) addr, len);
- store_unsigned_integer (valbuf, len, c);
- }
- else
- {
- error ("I don't know how this 8 byte value is returned.");
- }
- break;
- }
-}
-
-
-/* Function: store_return_value
- Place the appropriate value in the appropriate registers.
- Primarily used by the RETURN command. */
-
-static void
-h8300_store_return_value (struct type *type, struct regcache *regcache,
- const void *valbuf)
-{
- int len = TYPE_LENGTH (type);
- ULONGEST val;
-
- switch (len)
- {
- case 1:
- case 2: /* short... */
- val = extract_unsigned_integer (valbuf, len);
- regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
- break;
- case 4: /* long, float */
- val = extract_unsigned_integer (valbuf, len);
- regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
- (val >> 16) &0xffff);
- regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM, val & 0xffff);
- break;
- case 8: /* long long, double and long double are all defined
- as 4 byte types so far so this shouldn't happen. */
- error ("I don't know how to return an 8 byte value.");
- break;
- }
-}
-
-static void
-h8300h_store_return_value (struct type *type, struct regcache *regcache,
- const void *valbuf)
-{
- int len = TYPE_LENGTH (type);
- ULONGEST val;
-
- switch (len)
- {
- case 1:
- case 2:
- case 4: /* long, float */
- val = extract_unsigned_integer (valbuf, len);
- regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
- break;
- case 8: /* long long, double and long double are all defined
- as 4 byte types so far so this shouldn't happen. */
- error ("I don't know how to return an 8 byte value.");
- break;
- }
-}
-
-static struct cmd_list_element *setmachinelist;
-
-static const char *
-h8300_register_name (int regno)
-{
- /* The register names change depending on which h8300 processor
- type is selected. */
- static char *register_names[] = {
- "r0", "r1", "r2", "r3", "r4", "r5", "r6",
- "sp", "","pc","cycles", "tick", "inst",
- "ccr", /* pseudo register */
- };
- if (regno < 0
- || regno >= (sizeof (register_names) / sizeof (*register_names)))
- internal_error (__FILE__, __LINE__,
- "h8300_register_name: illegal register number %d", regno);
- else
- return register_names[regno];
-}
-
-static const char *
-h8300s_register_name (int regno)
-{
- static char *register_names[] = {
- "er0", "er1", "er2", "er3", "er4", "er5", "er6",
- "sp", "", "pc", "cycles", "", "tick", "inst",
- "mach", "macl",
- "ccr", "exr" /* pseudo registers */
- };
- if (regno < 0
- || regno >= (sizeof (register_names) / sizeof (*register_names)))
- internal_error (__FILE__, __LINE__,
- "h8300s_register_name: illegal register number %d", regno);
- else
- return register_names[regno];
-}
-
-static const char *
-h8300sx_register_name (int regno)
-{
- static char *register_names[] = {
- "er0", "er1", "er2", "er3", "er4", "er5", "er6",
- "sp", "", "pc", "cycles", "", "tick", "inst",
- "mach", "macl", "sbr", "vbr",
- "ccr", "exr" /* pseudo registers */
- };
- if (regno < 0
- || regno >= (sizeof (register_names) / sizeof (*register_names)))
- internal_error (__FILE__, __LINE__,
- "h8300sx_register_name: illegal register number %d", regno);
- else
- return register_names[regno];
-}
-
-static void
-h8300_print_register (struct gdbarch *gdbarch, struct ui_file *file,
- struct frame_info *frame, int regno)
-{
- LONGEST rval;
- const char *name = gdbarch_register_name (gdbarch, regno);
-
- if (!name || !*name)
- return;
-
- rval = get_frame_register_signed (frame, regno);
-
- fprintf_filtered (file, "%-14s ", name);
- if (regno == E_PSEUDO_CCR_REGNUM ||
- (regno == E_PSEUDO_EXR_REGNUM && is_h8300smode (current_gdbarch)))
- {
- fprintf_filtered (file, "0x%02x ", (unsigned char)rval);
- print_longest (file, 'u', 1, rval);
- }
- else
- {
- fprintf_filtered (file, "0x%s ", phex ((ULONGEST)rval, BINWORD));
- print_longest (file, 'd', 1, rval);
- }
- if (regno == E_PSEUDO_CCR_REGNUM)
- {
- /* CCR register */
- int C, Z, N, V;
- unsigned char l = rval & 0xff;
- fprintf_filtered (file, "\t");
- fprintf_filtered (file, "I-%d ", (l & 0x80) != 0);
- fprintf_filtered (file, "UI-%d ", (l & 0x40) != 0);
- fprintf_filtered (file, "H-%d ", (l & 0x20) != 0);
- fprintf_filtered (file, "U-%d ", (l & 0x10) != 0);
- N = (l & 0x8) != 0;
- Z = (l & 0x4) != 0;
- V = (l & 0x2) != 0;
- C = (l & 0x1) != 0;
- fprintf_filtered (file, "N-%d ", N);
- fprintf_filtered (file, "Z-%d ", Z);
- fprintf_filtered (file, "V-%d ", V);
- fprintf_filtered (file, "C-%d ", C);
- if ((C | Z) == 0)
- fprintf_filtered (file, "u> ");
- if ((C | Z) == 1)
- fprintf_filtered (file, "u<= ");
- if ((C == 0))
- fprintf_filtered (file, "u>= ");
- if (C == 1)
- fprintf_filtered (file, "u< ");
- if (Z == 0)
- fprintf_filtered (file, "!= ");
- if (Z == 1)
- fprintf_filtered (file, "== ");
- if ((N ^ V) == 0)
- fprintf_filtered (file, ">= ");
- if ((N ^ V) == 1)
- fprintf_filtered (file, "< ");
- if ((Z | (N ^ V)) == 0)
- fprintf_filtered (file, "> ");
- if ((Z | (N ^ V)) == 1)
- fprintf_filtered (file, "<= ");
- }
- else if (regno == E_PSEUDO_EXR_REGNUM && is_h8300smode (current_gdbarch))
- {
- /* EXR register */
- unsigned char l = rval & 0xff;
- fprintf_filtered (file, "\t");
- fprintf_filtered (file, "T-%d - - - ", (l & 0x80) != 0);
- fprintf_filtered (file, "I2-%d ", (l & 4) != 0);
- fprintf_filtered (file, "I1-%d ", (l & 2) != 0);
- fprintf_filtered (file, "I0-%d", (l & 1) != 0);
- }
- fprintf_filtered (file, "\n");
-}
-
-static void
-h8300_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file,
- struct frame_info *frame, int regno, int cpregs)
-{
- if (regno < 0)
- {
- for (regno = E_R0_REGNUM; regno <= E_SP_REGNUM; ++regno)
- h8300_print_register (gdbarch, file, frame, regno);
- h8300_print_register (gdbarch, file, frame, E_PSEUDO_CCR_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_PC_REGNUM);
- if (is_h8300smode (current_gdbarch))
- {
- h8300_print_register (gdbarch, file, frame, E_PSEUDO_EXR_REGNUM);
- if (is_h8300sxmode (current_gdbarch))
- {
- h8300_print_register (gdbarch, file, frame, E_SBR_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_VBR_REGNUM);
- }
- h8300_print_register (gdbarch, file, frame, E_MACH_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_MACL_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_CYCLES_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_TICKS_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_INSTS_REGNUM);
- }
- else
- {
- h8300_print_register (gdbarch, file, frame, E_CYCLES_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_TICK_REGNUM);
- h8300_print_register (gdbarch, file, frame, E_INST_REGNUM);
- }
- }
- else
- {
- if (regno == E_CCR_REGNUM)
- h8300_print_register (gdbarch, file, frame, E_PSEUDO_CCR_REGNUM);
- else if (regno == E_PSEUDO_EXR_REGNUM && is_h8300smode (current_gdbarch))
- h8300_print_register (gdbarch, file, frame, E_PSEUDO_EXR_REGNUM);
- else
- h8300_print_register (gdbarch, file, frame, regno);
- }
-}
-
-static CORE_ADDR
-h8300_saved_pc_after_call (struct frame_info *ignore)
-{
- return read_memory_unsigned_integer (read_register (E_SP_REGNUM), BINWORD);
-}
-
-static struct type *
-h8300_register_type (struct gdbarch *gdbarch, int regno)
-{
- if (regno < 0 || regno >= NUM_REGS + NUM_PSEUDO_REGS)
- internal_error (__FILE__, __LINE__,
- "h8300_register_type: illegal register number %d",
- regno);
- else
- {
- switch (regno)
- {
- case E_PC_REGNUM:
- return builtin_type_void_func_ptr;
- case E_SP_REGNUM:
- case E_FP_REGNUM:
- return builtin_type_void_data_ptr;
- default:
- if (regno == E_PSEUDO_CCR_REGNUM)
- return builtin_type_uint8;
- else if (regno == E_PSEUDO_EXR_REGNUM)
- return builtin_type_uint8;
- else if (is_h8300hmode (current_gdbarch))
- return builtin_type_int32;
- else
- return builtin_type_int16;
- }
- }
-}
-
-static void
-h8300_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
- int regno, void *buf)
-{
- if (regno == E_PSEUDO_CCR_REGNUM)
- regcache_raw_read (regcache, E_CCR_REGNUM, buf);
- else if (regno == E_PSEUDO_EXR_REGNUM)
- regcache_raw_read (regcache, E_EXR_REGNUM, buf);
- else
- regcache_raw_read (regcache, regno, buf);
-}
-
-static void
-h8300_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
- int regno, const void *buf)
-{
- if (regno == E_PSEUDO_CCR_REGNUM)
- regcache_raw_write (regcache, E_CCR_REGNUM, buf);
- else if (regno == E_PSEUDO_EXR_REGNUM)
- regcache_raw_write (regcache, E_EXR_REGNUM, buf);
- else
- regcache_raw_write (regcache, regno, buf);
-}
-
-static int
-h8300_dbg_reg_to_regnum (int regno)
-{
- if (regno == E_CCR_REGNUM)
- return E_PSEUDO_CCR_REGNUM;
- return regno;
-}
-
-static int
-h8300s_dbg_reg_to_regnum (int regno)
-{
- if (regno == E_CCR_REGNUM)
- return E_PSEUDO_CCR_REGNUM;
- if (regno == E_EXR_REGNUM)
- return E_PSEUDO_EXR_REGNUM;
- return regno;
-}
-
-static CORE_ADDR
-h8300_extract_struct_value_address (struct regcache *regcache)
-{
- ULONGEST addr;
- regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &addr);
- return addr;
-}
-
-const static unsigned char *
-h8300_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
-{
- /*static unsigned char breakpoint[] = { 0x7A, 0xFF };*/ /* ??? */
- static unsigned char breakpoint[] = { 0x01, 0x80 }; /* Sleep */
-
- *lenptr = sizeof (breakpoint);
- return breakpoint;
-}
-
-static CORE_ADDR
-h8300_push_dummy_code (struct gdbarch *gdbarch,
- CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc,
- struct value **args, int nargs,
- struct type *value_type,
- CORE_ADDR *real_pc, CORE_ADDR *bp_addr)
-{
- /* Allocate space sufficient for a breakpoint. */
- sp = (sp - 2) & ~1;
- /* Store the address of that breakpoint */
- *bp_addr = sp;
- /* h8300 always starts the call at the callee's entry point. */
- *real_pc = funaddr;
- return sp;
-}
-
-static void
-h8300_print_float_info (struct gdbarch *gdbarch, struct ui_file *file,
- struct frame_info *frame, const char *args)
-{
- fprintf_filtered (file, "\
-No floating-point info available for this processor.\n");
-}
-
-static struct gdbarch *
-h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
-{
- struct gdbarch_tdep *tdep = NULL;
- struct gdbarch *gdbarch;
-
- arches = gdbarch_list_lookup_by_info (arches, &info);
- if (arches != NULL)
- return arches->gdbarch;
-
-#if 0
- tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
-#endif
-
- if (info.bfd_arch_info->arch != bfd_arch_h8300)
- return NULL;
-
- gdbarch = gdbarch_alloc (&info, 0);
-
- switch (info.bfd_arch_info->mach)
- {
- case bfd_mach_h8300:
- set_gdbarch_num_regs (gdbarch, 13);
- set_gdbarch_num_pseudo_regs (gdbarch, 1);
- set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_dwarf_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_stab_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_register_name (gdbarch, h8300_register_name);
- set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
- set_gdbarch_extract_return_value (gdbarch, h8300_extract_return_value);
- set_gdbarch_store_return_value (gdbarch, h8300_store_return_value);
- set_gdbarch_print_insn (gdbarch, print_insn_h8300);
- break;
- case bfd_mach_h8300h:
- case bfd_mach_h8300hn:
- set_gdbarch_num_regs (gdbarch, 13);
- set_gdbarch_num_pseudo_regs (gdbarch, 1);
- set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_dwarf_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_stab_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
- set_gdbarch_register_name (gdbarch, h8300_register_name);
- if(info.bfd_arch_info->mach != bfd_mach_h8300hn)
- {
- set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- }
- else
- {
- set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 2 * 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_h8300h);
- break;
- case bfd_mach_h8300s:
- case bfd_mach_h8300sn:
- set_gdbarch_num_regs (gdbarch, 16);
- 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);
- if(info.bfd_arch_info->mach != bfd_mach_h8300sn)
- {
- set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- }
- else
- {
- set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 2 * 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:
- 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);
- if(info.bfd_arch_info->mach != bfd_mach_h8300sxn)
- {
- set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- }
- else
- {
- set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
- set_gdbarch_addr_bit (gdbarch, 2 * 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, deprecated_init_frame_pc_default);
-
- /*
- * Basic register fields and methods.
- */
-
- 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);
- set_gdbarch_register_type (gdbarch, h8300_register_type);
- set_gdbarch_print_registers_info (gdbarch, h8300_print_registers_info);
- set_gdbarch_print_float_info (gdbarch, h8300_print_float_info);
-
- /*
- * Frame Info
- */
- set_gdbarch_skip_prologue (gdbarch, h8300_skip_prologue);
-
- set_gdbarch_deprecated_frame_init_saved_regs (gdbarch,
- h8300_frame_init_saved_regs);
- set_gdbarch_deprecated_init_extra_frame_info (gdbarch,
- h8300_init_extra_frame_info);
- set_gdbarch_deprecated_frame_chain (gdbarch, h8300_frame_chain);
- set_gdbarch_deprecated_saved_pc_after_call (gdbarch,
- h8300_saved_pc_after_call);
- set_gdbarch_deprecated_frame_saved_pc (gdbarch, h8300_frame_saved_pc);
- set_gdbarch_deprecated_pop_frame (gdbarch, h8300_pop_frame);
-
- /*
- * Miscelany
- */
- /* Stack grows up. */
- set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-
- set_gdbarch_deprecated_extract_struct_value_address (gdbarch, h8300_extract_struct_value_address);
- set_gdbarch_deprecated_use_struct_convention (gdbarch, always_use_struct_convention);
- set_gdbarch_breakpoint_from_pc (gdbarch, h8300_breakpoint_from_pc);
- set_gdbarch_push_dummy_code (gdbarch, h8300_push_dummy_code);
- set_gdbarch_push_dummy_call (gdbarch, h8300_push_dummy_call);
-
- set_gdbarch_int_bit (gdbarch, 2 * TARGET_CHAR_BIT);
- set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
- set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- set_gdbarch_long_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
-
- set_gdbarch_believe_pcc_promotion (gdbarch, 1);
-
- /* Char is unsigned. */
- set_gdbarch_char_signed (gdbarch, 0);
-
- return gdbarch;
-}
-
-extern initialize_file_ftype _initialize_h8300_tdep; /* -Wmissing-prototypes */
-
-void
-_initialize_h8300_tdep (void)
-{
- register_gdbarch_init (bfd_arch_h8300, h8300_gdbarch_init);
-}
-
-static int
-is_h8300hmode (struct gdbarch *gdbarch)
-{
- return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sx
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300s
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sn
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300h
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300hn;
-}
-
-static int
-is_h8300smode (struct gdbarch *gdbarch)
-{
- return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sx
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300s
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sn;
-}
-
-static int
-is_h8300sxmode (struct gdbarch *gdbarch)
-{
- return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sx
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn;
-}
-
-static int
-is_h8300_normal_mode (struct gdbarch *gdbarch)
-{
- return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sn
- || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300hn;
-}
-