/* Target-dependent code for Motorola 68HC11 & 68HC12
- Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+
+ Copyright (C) 1999-2019 Free Software Foundation, Inc.
+
Contributed by Stephane Carrez, stcarrez@nerim.fr
-This file is part of GDB.
+ 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 free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ 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. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame.h"
+#include "frame-unwind.h"
+#include "frame-base.h"
+#include "dwarf2-frame.h"
+#include "trad-frame.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "gdbcmd.h"
#include "gdbcore.h"
-#include "gdb_string.h"
#include "value.h"
#include "inferior.h"
#include "dis-asm.h"
analysis to compute correct stack frame layout.
The MSB of the minimal symbol's "info" field is used for this purpose.
- This field is already being used to store the symbol size, so the
- assumption is that the symbol size cannot exceed 2^30.
MSYMBOL_SET_RTC Actually sets the "RTC" bit.
MSYMBOL_SET_RTI Actually sets the "RTI" bit.
MSYMBOL_IS_RTC Tests the "RTC" bit in a minimal symbol.
- MSYMBOL_IS_RTI Tests the "RTC" bit in a minimal symbol.
- MSYMBOL_SIZE Returns the size of the minimal symbol,
- i.e. the "info" field with the "special" bit
- masked out. */
+ MSYMBOL_IS_RTI Tests the "RTC" bit in a minimal symbol. */
-#define MSYMBOL_SET_RTC(msym) \
- MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) \
- | 0x80000000)
+#define MSYMBOL_SET_RTC(msym) \
+ MSYMBOL_TARGET_FLAG_1 (msym) = 1
-#define MSYMBOL_SET_RTI(msym) \
- MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) \
- | 0x40000000)
+#define MSYMBOL_SET_RTI(msym) \
+ MSYMBOL_TARGET_FLAG_2 (msym) = 1
#define MSYMBOL_IS_RTC(msym) \
- (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
+ MSYMBOL_TARGET_FLAG_1 (msym)
#define MSYMBOL_IS_RTI(msym) \
- (((long) MSYMBOL_INFO (msym) & 0x40000000) != 0)
-
-#define MSYMBOL_SIZE(msym) \
- ((long) MSYMBOL_INFO (msym) & 0x3fffffff)
+ MSYMBOL_TARGET_FLAG_2 (msym)
enum insn_return_kind {
RETURN_RTS,
};
-/* Register numbers of various important registers.
- Note that some of these values are "real" register numbers,
- and correspond to the general registers of the machine,
- and some are "phony" register numbers which are too large
- to be actual register numbers as far as the user is concerned
- but do serve to get the desired values when passed to read_register. */
+/* Register numbers of various important registers. */
#define HARD_X_REGNUM 0
#define HARD_D_REGNUM 1
/* 68HC12 page number register.
Note: to keep a compatibility with gcc register naming, we must
not have to rename FP and other soft registers. The page register
- is a real hard register and must therefore be counted by NUM_REGS.
+ is a real hard register and must therefore be counted by gdbarch_num_regs.
For this it has the same number as Z register (which is not used). */
#define HARD_PAGE_REGNUM 8
#define M68HC11_LAST_HARD_REG (HARD_PAGE_REGNUM)
#define SOFT_D32_REGNUM (SOFT_D1_REGNUM+31)
#define M68HC11_MAX_SOFT_REGS 32
-#define M68HC11_NUM_REGS (8)
+#define M68HC11_NUM_REGS (M68HC11_LAST_HARD_REG + 1)
#define M68HC11_NUM_PSEUDO_REGS (M68HC11_MAX_SOFT_REGS+5)
#define M68HC11_ALL_REGS (M68HC11_NUM_REGS+M68HC11_NUM_PSEUDO_REGS)
int elf_flags;
};
-#define M6811_TDEP gdbarch_tdep (current_gdbarch)
-#define STACK_CORRECTION (M6811_TDEP->stack_correction)
-#define USE_PAGE_REGISTER (M6811_TDEP->use_page_register)
+#define STACK_CORRECTION(gdbarch) (gdbarch_tdep (gdbarch)->stack_correction)
+#define USE_PAGE_REGISTER(gdbarch) (gdbarch_tdep (gdbarch)->use_page_register)
-struct frame_extra_info
+struct m68hc11_unwind_cache
{
+ /* The previous frame's inner most stack address. Used as this
+ frame ID's stack_addr. */
+ CORE_ADDR prev_sp;
+ /* The frame's base, optionally used by the high-level debug info. */
+ CORE_ADDR base;
+ CORE_ADDR pc;
+ int size;
+ int prologue_type;
CORE_ADDR return_pc;
+ CORE_ADDR sp_offset;
int frameless;
- int size;
enum insn_return_kind return_kind;
+
+ /* Table indicating the location of each and every register. */
+ struct trad_frame_saved_reg *saved_regs;
};
/* Table of registers for 68HC11. This includes the hard registers
and the soft registers used by GCC. */
-static char *
+static const char *
m68hc11_register_names[] =
{
"x", "d", "y", "sp", "pc", "a", "b",
static void
m68hc11_get_register_info (struct m68hc11_soft_reg *reg, const char *name)
{
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
msymbol = lookup_minimal_symbol (name, NULL, NULL);
- if (msymbol)
+ if (msymbol.minsym)
{
- reg->addr = SYMBOL_VALUE_ADDRESS (msymbol);
+ reg->addr = BMSYMBOL_VALUE_ADDRESS (msymbol);
reg->name = xstrdup (name);
/* Keep track of the address range for soft registers. */
{
char buf[10];
- sprintf (buf, "_.d%d", i - SOFT_D1_REGNUM + 1);
+ xsnprintf (buf, sizeof (buf), "_.d%d", i - SOFT_D1_REGNUM + 1);
m68hc11_get_register_info (&soft_regs[i], buf);
}
if (soft_regs[SOFT_FP_REGNUM].name == 0)
- {
- warning ("No frame soft register found in the symbol table.\n");
- warning ("Stack backtrace will not work.\n");
- }
+ warning (_("No frame soft register found in the symbol table.\n"
+ "Stack backtrace will not work."));
soft_reg_initialized = 1;
}
/* 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. */
-static void
+static enum register_status
m68hc11_pseudo_register_read (struct gdbarch *gdbarch,
- struct regcache *regcache,
- int regno, void *buf)
+ readable_regcache *regcache,
+ int regno, gdb_byte *buf)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
/* The PC is a pseudo reg only for 68HC12 with the memory bank
addressing mode. */
if (regno == M68HC12_HARD_PC_REGNUM)
{
ULONGEST pc;
- const int regsize = TYPE_LENGTH (builtin_type_uint32);
+ const int regsize = 4;
+ enum register_status status;
- regcache_cooked_read_unsigned (regcache, HARD_PC_REGNUM, &pc);
+ status = regcache->cooked_read (HARD_PC_REGNUM, &pc);
+ if (status != REG_VALID)
+ return status;
if (pc >= 0x8000 && pc < 0xc000)
{
ULONGEST page;
- regcache_cooked_read_unsigned (regcache, HARD_PAGE_REGNUM, &page);
+ regcache->cooked_read (HARD_PAGE_REGNUM, &page);
pc -= 0x8000;
pc += (page << 14);
pc += 0x1000000;
}
- store_unsigned_integer (buf, regsize, pc);
- return;
+ store_unsigned_integer (buf, regsize, byte_order, pc);
+ return REG_VALID;
}
m68hc11_initialize_register_info ();
{
memset (buf, 0, 2);
}
+
+ return REG_VALID;
}
/* Store a pseudo register. Translate the register store
static void
m68hc11_pseudo_register_write (struct gdbarch *gdbarch,
struct regcache *regcache,
- int regno, const void *buf)
+ int regno, const gdb_byte *buf)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
/* 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);
+ const int regsize = 4;
+ gdb_byte *tmp = (gdb_byte *) alloca (regsize);
CORE_ADDR pc;
memcpy (tmp, buf, regsize);
- pc = extract_unsigned_integer (tmp, regsize);
+ pc = extract_unsigned_integer (tmp, regsize, byte_order);
if (pc >= 0x1000000)
{
pc -= 0x1000000;
if (soft_regs[regno].name)
{
const int regsize = 2;
- char *tmp = alloca (regsize);
+ gdb_byte *tmp = (gdb_byte *) alloca (regsize);
memcpy (tmp, buf, regsize);
target_write_memory (soft_regs[regno].addr, tmp, regsize);
}
}
static const char *
-m68hc11_register_name (int reg_nr)
+m68hc11_register_name (struct gdbarch *gdbarch, int reg_nr)
{
- if (reg_nr == M68HC12_HARD_PC_REGNUM && USE_PAGE_REGISTER)
+ if (reg_nr == M68HC12_HARD_PC_REGNUM && USE_PAGE_REGISTER (gdbarch))
return "pc";
- if (reg_nr == HARD_PC_REGNUM && USE_PAGE_REGISTER)
+ if (reg_nr == HARD_PC_REGNUM && USE_PAGE_REGISTER (gdbarch))
return "ppc";
if (reg_nr < 0)
if (reg_nr >= M68HC11_ALL_REGS)
return NULL;
+ m68hc11_initialize_register_info ();
+
/* 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 m68hc11_register_names[reg_nr];
}
-static const unsigned char *
-m68hc11_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
-{
- static unsigned char breakpoint[] = {0x0};
-
- *lenptr = sizeof (breakpoint);
- return breakpoint;
-}
-
-/* Immediately after a function call, return the saved pc before the frame
- is setup. */
-
-static CORE_ADDR
-m68hc11_saved_pc_after_call (struct frame_info *frame)
-{
- CORE_ADDR addr;
- ULONGEST sp;
-
- regcache_cooked_read_unsigned (current_regcache, HARD_SP_REGNUM, &sp);
- sp += STACK_CORRECTION;
- addr = sp & 0x0ffff;
- return read_memory_integer (addr, 2) & 0x0FFFF;
-}
-
-static CORE_ADDR
-m68hc11_frame_saved_pc (struct frame_info *frame)
-{
- return get_frame_extra_info (frame)->return_pc;
-}
-
-static CORE_ADDR
-m68hc11_frame_args_address (struct frame_info *frame)
-{
- CORE_ADDR addr;
-
- 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 (get_frame_extra_info (frame)->return_kind == RETURN_RTI)
- addr += 7;
-
- return addr;
-}
-
-/* Discard from the stack the innermost frame, restoring all saved
- registers. */
-
-static void
-m68hc11_pop_frame (void)
-{
- register struct frame_info *frame = get_current_frame ();
- register CORE_ADDR fp, sp;
- register int regnum;
-
- 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);
- DEPRECATED_FRAME_INIT_SAVED_REGS (frame);
-
- /* Copy regs from where they were saved in the frame. */
- for (regnum = 0; regnum < M68HC11_ALL_REGS; regnum++)
- if (get_frame_saved_regs (frame)[regnum])
- write_register (regnum,
- read_memory_integer (get_frame_saved_regs (frame)[regnum], 2));
-
- 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 ();
-}
+constexpr gdb_byte m68hc11_break_insn[] = {0x0};
+typedef BP_MANIPULATION (m68hc11_break_insn) m68hc11_breakpoint;
\f
-/* 68HC11 & 68HC12 prologue analysis.
+/* 68HC11 & 68HC12 prologue analysis. */
- */
#define MAX_CODES 12
/* 68HC11 opcodes. */
/* Analyze the sequence of instructions starting at the given address.
Returns a pointer to the sequence when it is recognized and
- the optional value (constant/address) associated with it.
- Advance the pc for the next sequence. */
+ the optional value (constant/address) associated with it. */
static struct insn_sequence *
-m68hc11_analyze_instruction (struct insn_sequence *seq, CORE_ADDR *pc,
+m68hc11_analyze_instruction (struct gdbarch *gdbarch,
+ struct insn_sequence *seq, CORE_ADDR pc,
CORE_ADDR *val)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned char buffer[MAX_CODES];
unsigned bufsize;
unsigned j;
{
if (bufsize < j + 1)
{
- buffer[bufsize] = read_memory_unsigned_integer (*pc + bufsize,
- 1);
+ buffer[bufsize] = read_memory_unsigned_integer (pc + bufsize,
+ 1, byte_order);
bufsize++;
}
/* Continue while we match the opcode. */
}
else if ((buffer[j] & 0xfe) == 0xf0)
{
- v = read_memory_unsigned_integer (*pc + j + 1, 1);
+ v = read_memory_unsigned_integer (pc + j + 1, 1, byte_order);
if (buffer[j] & 1)
v |= 0xff00;
- *pc = *pc + 1;
}
else if (buffer[j] == 0xf2)
{
- v = read_memory_unsigned_integer (*pc + j + 1, 2);
- *pc = *pc + 2;
+ v = read_memory_unsigned_integer (pc + j + 1, 2, byte_order);
}
cur_val = v;
break;
if (j == seq->length)
{
*val = cur_val;
- *pc = *pc + j;
return seq;
}
}
static enum insn_return_kind
m68hc11_get_return_insn (CORE_ADDR pc)
{
- struct minimal_symbol *sym;
+ struct bound_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)
+ if (sym.minsym == 0)
return RETURN_RTS;
- if (MSYMBOL_IS_RTC (sym))
+ if (MSYMBOL_IS_RTC (sym.minsym))
return RETURN_RTC;
- else if (MSYMBOL_IS_RTI (sym))
+ else if (MSYMBOL_IS_RTI (sym.minsym))
return RETURN_RTI;
else
return RETURN_RTS;
}
-
/* 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. */
-static void
-m68hc11_guess_from_prologue (CORE_ADDR pc, CORE_ADDR fp,
- CORE_ADDR *first_line,
- int *frame_offset, CORE_ADDR *pushed_regs)
+static CORE_ADDR
+m68hc11_scan_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
+ CORE_ADDR current_pc, struct m68hc11_unwind_cache *info)
{
- CORE_ADDR save_addr;
+ LONGEST save_addr;
CORE_ADDR func_end;
int size;
int found_frame_point;
int saved_reg;
- CORE_ADDR first_pc;
int done = 0;
struct insn_sequence *seq_table;
-
- first_pc = get_pc_function_start (pc);
+
+ info->size = 0;
+ info->sp_offset = 0;
+ if (pc >= current_pc)
+ return current_pc;
+
size = 0;
m68hc11_initialize_register_info ();
- if (first_pc == 0)
+ if (pc == 0)
{
- *frame_offset = 0;
- *first_line = pc;
- return;
+ info->size = 0;
+ return pc;
}
- seq_table = gdbarch_tdep (current_gdbarch)->prologue;
+ seq_table = gdbarch_tdep (gdbarch)->prologue;
/* The 68hc11 stack is as follows:
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).
- */
- pc = first_pc;
+ prologue (as generated by gcc 2.95, 2.96). */
+
func_end = pc + 128;
found_frame_point = 0;
- *frame_offset = 0;
- save_addr = fp + STACK_CORRECTION;
+ info->size = 0;
+ save_addr = 0;
while (!done && pc + 2 < func_end)
{
struct insn_sequence *seq;
CORE_ADDR val;
-
- seq = m68hc11_analyze_instruction (seq_table, &pc, &val);
+
+ seq = m68hc11_analyze_instruction (gdbarch, seq_table, pc, &val);
if (seq == 0)
break;
+ /* 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;
if (seq->type == P_SAVE_REG)
{
if (found_frame_point)
break;
save_addr -= 2;
- if (pushed_regs)
- pushed_regs[saved_reg] = save_addr;
+ if (info->saved_regs)
+ info->saved_regs[saved_reg].addr = save_addr;
}
else
{
else if (seq->type == P_SET_FRAME)
{
found_frame_point = 1;
- *frame_offset = size;
+ info->size = size;
}
else if (seq->type == P_LOCAL_1)
{
size -= val;
}
}
- *first_line = pc;
+ if (found_frame_point == 0)
+ info->sp_offset = size;
+ else
+ info->sp_offset = -1;
+ return pc;
}
static CORE_ADDR
-m68hc11_skip_prologue (CORE_ADDR pc)
+m68hc11_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
CORE_ADDR func_addr, func_end;
struct symtab_and_line sal;
- int frame_offset;
+ struct m68hc11_unwind_cache tmp_cache = { 0 };
/* If we have line debugging information, then the end of the
prologue should be the first assembly instruction of the
return sal.end;
}
- m68hc11_guess_from_prologue (pc, 0, &pc, &frame_offset, 0);
+ pc = m68hc11_scan_prologue (gdbarch, pc, (CORE_ADDR) -1, &tmp_cache);
return pc;
}
-/* 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. */
+/* 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. */
-static CORE_ADDR
-m68hc11_frame_chain (struct frame_info *frame)
+static struct m68hc11_unwind_cache *
+m68hc11_frame_unwind_cache (struct frame_info *this_frame,
+ void **this_prologue_cache)
{
- CORE_ADDR addr;
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ ULONGEST prev_sp;
+ ULONGEST this_base;
+ struct m68hc11_unwind_cache *info;
+ CORE_ADDR current_pc;
+ int i;
+
+ if ((*this_prologue_cache))
+ return (struct m68hc11_unwind_cache *) (*this_prologue_cache);
+
+ info = FRAME_OBSTACK_ZALLOC (struct m68hc11_unwind_cache);
+ (*this_prologue_cache) = info;
+ info->saved_regs = trad_frame_alloc_saved_regs (this_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 */
+ info->pc = get_frame_func (this_frame);
- if (get_frame_extra_info (frame)->return_pc == 0
- || inside_entry_file (get_frame_extra_info (frame)->return_pc))
- return (CORE_ADDR) 0;
+ info->size = 0;
+ info->return_kind = m68hc11_get_return_insn (info->pc);
- if (get_frame_base (frame) == 0)
+ /* 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. */
+ this_base = get_frame_register_unsigned (this_frame, SOFT_FP_REGNUM);
+ if (this_base == 0)
{
- return (CORE_ADDR) 0;
+ info->base = 0;
+ return info;
}
- addr = get_frame_base (frame) + get_frame_extra_info (frame)->size + STACK_CORRECTION - 2;
- addr = read_memory_unsigned_integer (addr, 2) & 0x0FFFF;
- return addr;
-}
+ current_pc = get_frame_pc (this_frame);
+ if (info->pc != 0)
+ m68hc11_scan_prologue (gdbarch, info->pc, current_pc, info);
-/* Put here the code to store, into a struct frame_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. */
-static void
-m68hc11_frame_init_saved_regs (struct frame_info *fi)
-{
- CORE_ADDR pc;
- CORE_ADDR addr;
+ info->saved_regs[HARD_PC_REGNUM].addr = info->size;
- if (get_frame_saved_regs (fi) == NULL)
- frame_saved_regs_zalloc (fi);
+ if (info->sp_offset != (CORE_ADDR) -1)
+ {
+ info->saved_regs[HARD_PC_REGNUM].addr = info->sp_offset;
+ this_base = get_frame_register_unsigned (this_frame, HARD_SP_REGNUM);
+ prev_sp = this_base + info->sp_offset + 2;
+ this_base += STACK_CORRECTION (gdbarch);
+ }
else
- memset (get_frame_saved_regs (fi), 0, SIZEOF_FRAME_SAVED_REGS);
-
- pc = get_frame_pc (fi);
- 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));
+ {
+ /* 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;
- 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;
+ this_base += STACK_CORRECTION (gdbarch);
+ if (soft_regs[SOFT_FP_REGNUM].name)
+ info->saved_regs[SOFT_FP_REGNUM].addr = info->size - 2;
+ }
- /* Take into account how the function was called/returns. */
- if (get_frame_extra_info (fi)->return_kind == RETURN_RTC)
+ if (info->return_kind == RETURN_RTC)
{
- get_frame_saved_regs (fi)[HARD_PAGE_REGNUM] = addr;
- addr++;
+ prev_sp += 1;
+ info->saved_regs[HARD_PAGE_REGNUM].addr = info->size;
+ info->saved_regs[HARD_PC_REGNUM].addr = info->size + 1;
}
- else if (get_frame_extra_info (fi)->return_kind == RETURN_RTI)
+ else if (info->return_kind == RETURN_RTI)
{
- get_frame_saved_regs (fi)[HARD_CCR_REGNUM] = addr;
- get_frame_saved_regs (fi)[HARD_D_REGNUM] = addr + 1;
- get_frame_saved_regs (fi)[HARD_X_REGNUM] = addr + 3;
- get_frame_saved_regs (fi)[HARD_Y_REGNUM] = addr + 5;
- addr += 7;
+ 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;
}
- get_frame_saved_regs (fi)[HARD_SP_REGNUM] = addr;
- get_frame_saved_regs (fi)[HARD_PC_REGNUM] = get_frame_saved_regs (fi)[HARD_SP_REGNUM];
+
+ /* 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. */
+ for (i = 0; i < gdbarch_num_cooked_regs (gdbarch); i++)
+ 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_init_extra_frame_info (int fromleaf, struct frame_info *fi)
+m68hc11_frame_this_id (struct frame_info *this_frame,
+ void **this_prologue_cache,
+ struct frame_id *this_id)
{
- CORE_ADDR addr;
+ struct m68hc11_unwind_cache *info
+ = m68hc11_frame_unwind_cache (this_frame, this_prologue_cache);
+ CORE_ADDR base;
+ CORE_ADDR func;
+ struct frame_id id;
+
+ /* The FUNC is easy. */
+ func = get_frame_func (this_frame);
+
+ /* 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;
- frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
-
- 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);
+ id = frame_id_build (base, func);
+ (*this_id) = id;
+}
- if (fromleaf)
- {
- 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 = get_frame_saved_regs (fi)[HARD_PC_REGNUM];
- addr = read_memory_unsigned_integer (addr, 2) & 0x0ffff;
+static struct value *
+m68hc11_frame_prev_register (struct frame_info *this_frame,
+ void **this_prologue_cache, int regnum)
+{
+ struct value *value;
+ struct m68hc11_unwind_cache *info
+ = m68hc11_frame_unwind_cache (this_frame, this_prologue_cache);
+
+ value = trad_frame_get_prev_register (this_frame, info->saved_regs, regnum);
- /* Take into account the 68HC12 specific call (PC + page). */
- if (get_frame_extra_info (fi)->return_kind == RETURN_RTC
- && addr >= 0x08000 && addr < 0x0c000
- && USE_PAGE_REGISTER)
+ /* Take into account the 68HC12 specific call (PC + page). */
+ if (regnum == HARD_PC_REGNUM
+ && info->return_kind == RETURN_RTC
+ && USE_PAGE_REGISTER (get_frame_arch (this_frame)))
+ {
+ CORE_ADDR pc = value_as_long (value);
+ if (pc >= 0x08000 && pc < 0x0c000)
{
- CORE_ADDR page_addr = get_frame_saved_regs (fi)[HARD_PAGE_REGNUM];
+ CORE_ADDR page;
+
+ release_value (value);
+
+ value = trad_frame_get_prev_register (this_frame, info->saved_regs,
+ HARD_PAGE_REGNUM);
+ page = value_as_long (value);
+ release_value (value);
- unsigned page = read_memory_unsigned_integer (page_addr, 1);
- addr -= 0x08000;
- addr += ((page & 0x0ff) << 14);
- addr += 0x1000000;
+ pc -= 0x08000;
+ pc += ((page & 0x0ff) << 14);
+ pc += 0x1000000;
+
+ return frame_unwind_got_constant (this_frame, regnum, pc);
}
- get_frame_extra_info (fi)->return_pc = addr;
}
+
+ return value;
+}
+
+static const struct frame_unwind m68hc11_frame_unwind = {
+ NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
+ m68hc11_frame_this_id,
+ m68hc11_frame_prev_register,
+ NULL,
+ default_frame_sniffer
+};
+
+static CORE_ADDR
+m68hc11_frame_base_address (struct frame_info *this_frame, void **this_cache)
+{
+ struct m68hc11_unwind_cache *info
+ = m68hc11_frame_unwind_cache (this_frame, this_cache);
+
+ return info->base;
+}
+
+static CORE_ADDR
+m68hc11_frame_args_address (struct frame_info *this_frame, void **this_cache)
+{
+ CORE_ADDR addr;
+ struct m68hc11_unwind_cache *info
+ = m68hc11_frame_unwind_cache (this_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
+};
+
+/* Assuming THIS_FRAME 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_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
+{
+ ULONGEST tos;
+ CORE_ADDR pc = get_frame_pc (this_frame);
+
+ tos = get_frame_register_unsigned (this_frame, SOFT_FP_REGNUM);
+ tos += 2;
+ return frame_id_build (tos, pc);
}
\f
if (regno == HARD_PC_REGNUM || regno == HARD_SP_REGNUM
|| regno == SOFT_FP_REGNUM || regno == M68HC12_HARD_PC_REGNUM)
- frame_read_unsigned_register (frame, regno, &rval);
+ rval = get_frame_register_unsigned (frame, regno);
else
- frame_read_signed_register (frame, regno, &rval);
+ rval = get_frame_register_signed (frame, regno);
if (regno == HARD_A_REGNUM || regno == HARD_B_REGNUM
|| regno == HARD_CCR_REGNUM || regno == HARD_PAGE_REGNUM)
{
ULONGEST page;
- frame_read_unsigned_register (frame, HARD_PAGE_REGNUM, &page);
+ page = get_frame_register_unsigned (frame, HARD_PAGE_REGNUM);
fprintf_filtered (file, "0x%02x:%04x ", (unsigned) page,
(unsigned) rval);
}
V = (l & M6811_V_BIT) != 0;
C = (l & M6811_C_BIT) != 0;
- /* Print flags following the h8300 */
+ /* Print flags following the h8300. */
if ((C | Z) == 0)
fprintf_filtered (file, "u> ");
else if ((C | Z) == 1)
}
}
-/* Same as 'info reg' but prints the registers in a different way. */
-static void
-show_regs (char *args, int from_tty)
-{
- m68hc11_print_registers_info (current_gdbarch, gdb_stdout,
- get_current_frame (), -1, 1);
-}
-
-static CORE_ADDR
-m68hc11_stack_align (CORE_ADDR addr)
-{
- return ((addr + 1) & -2);
-}
-
static CORE_ADDR
-m68hc11_push_arguments (int nargs,
- struct value **args,
- CORE_ADDR sp,
- int struct_return,
- CORE_ADDR struct_addr)
+m68hc11_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
+ struct regcache *regcache, CORE_ADDR bp_addr,
+ int nargs, struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method,
+ CORE_ADDR struct_addr)
{
- int stack_alloc;
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int argnum;
int first_stack_argnum;
- int stack_offset;
struct type *type;
- char *val;
- int len;
+ const gdb_byte *val;
+ gdb_byte buf[2];
- stack_alloc = 0;
first_stack_argnum = 0;
- if (struct_return)
- {
- /* The struct is allocated on the stack and gdb used the stack
- pointer for the address of that struct. We must apply the
- stack offset on the address. */
- write_register (HARD_D_REGNUM, struct_addr + STACK_CORRECTION);
- }
+ if (return_method == return_method_struct)
+ regcache_cooked_write_unsigned (regcache, HARD_D_REGNUM, struct_addr);
else if (nargs > 0)
{
- type = VALUE_TYPE (args[0]);
- len = TYPE_LENGTH (type);
-
+ type = value_type (args[0]);
+
/* First argument is passed in D and X registers. */
- if (len <= 4)
+ if (TYPE_LENGTH (type) <= 4)
{
- LONGEST v = extract_unsigned_integer (VALUE_CONTENTS (args[0]), len);
+ ULONGEST v;
+
+ v = extract_unsigned_integer (value_contents (args[0]),
+ TYPE_LENGTH (type), byte_order);
first_stack_argnum = 1;
- write_register (HARD_D_REGNUM, v);
- if (len > 2)
+
+ regcache_cooked_write_unsigned (regcache, HARD_D_REGNUM, v);
+ if (TYPE_LENGTH (type) > 2)
{
v >>= 16;
- write_register (HARD_X_REGNUM, v);
+ regcache_cooked_write_unsigned (regcache, HARD_X_REGNUM, v);
}
}
}
- for (argnum = first_stack_argnum; argnum < nargs; argnum++)
- {
- type = VALUE_TYPE (args[argnum]);
- stack_alloc += (TYPE_LENGTH (type) + 1) & -2;
- }
- sp -= stack_alloc;
- stack_offset = STACK_CORRECTION;
- for (argnum = first_stack_argnum; argnum < nargs; argnum++)
+ for (argnum = nargs - 1; argnum >= first_stack_argnum; argnum--)
{
- type = VALUE_TYPE (args[argnum]);
- len = TYPE_LENGTH (type);
+ type = value_type (args[argnum]);
- val = (char*) VALUE_CONTENTS (args[argnum]);
- write_memory (sp + stack_offset, val, len);
- stack_offset += len;
- if (len & 1)
+ if (TYPE_LENGTH (type) & 1)
{
- static char zero = 0;
+ static gdb_byte zero = 0;
- write_memory (sp + stack_offset, &zero, 1);
- stack_offset++;
+ sp--;
+ write_memory (sp, &zero, 1);
}
+ val = value_contents (args[argnum]);
+ sp -= TYPE_LENGTH (type);
+ write_memory (sp, val, TYPE_LENGTH (type));
}
- return sp;
+
+ /* Store return address. */
+ sp -= 2;
+ store_unsigned_integer (buf, 2, byte_order, bp_addr);
+ write_memory (sp, buf, 2);
+
+ /* Finally, update the stack pointer... */
+ sp -= STACK_CORRECTION (gdbarch);
+ 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;
}
case HARD_A_REGNUM:
case HARD_B_REGNUM:
case HARD_CCR_REGNUM:
- return builtin_type_uint8;
+ return builtin_type (gdbarch)->builtin_uint8;
case M68HC12_HARD_PC_REGNUM:
- return builtin_type_uint32;
+ return builtin_type (gdbarch)->builtin_uint32;
default:
- return builtin_type_uint16;
+ return builtin_type (gdbarch)->builtin_uint16;
}
}
-static void
-m68hc11_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
-{
- /* The struct address computed by gdb is on the stack.
- It uses the stack pointer so we must apply the stack
- correction offset. */
- write_register (HARD_D_REGNUM, addr + STACK_CORRECTION);
-}
-
static void
m68hc11_store_return_value (struct type *type, struct regcache *regcache,
- const void *valbuf)
+ const gdb_byte *valbuf)
{
int len;
/* First argument is passed in D and X registers. */
if (len <= 2)
- regcache_raw_write_part (regcache, HARD_D_REGNUM, 2 - len, len, valbuf);
+ regcache->raw_write_part (HARD_D_REGNUM, 2 - len, len, valbuf);
else if (len <= 4)
{
- regcache_raw_write_part (regcache, HARD_X_REGNUM, 4 - len,
- len - 2, valbuf);
- regcache_raw_write (regcache, HARD_D_REGNUM, (char*) valbuf + (len - 2));
+ regcache->raw_write_part (HARD_X_REGNUM, 4 - len, len - 2, valbuf);
+ regcache->raw_write (HARD_D_REGNUM, valbuf + (len - 2));
}
else
- error ("return of value > 4 is not supported.");
+ error (_("return of value > 4 is not supported."));
}
m68hc11_extract_return_value (struct type *type, struct regcache *regcache,
void *valbuf)
{
- int len = TYPE_LENGTH (type);
- char buf[M68HC11_REG_SIZE];
+ gdb_byte buf[M68HC11_REG_SIZE];
- regcache_raw_read (regcache, HARD_D_REGNUM, buf);
- switch (len)
+ regcache->raw_read (HARD_D_REGNUM, buf);
+ switch (TYPE_LENGTH (type))
{
case 1:
memcpy (valbuf, buf + 1, 1);
case 3:
memcpy ((char*) valbuf + 1, buf, 2);
- regcache_raw_read (regcache, HARD_X_REGNUM, buf);
+ regcache->raw_read (HARD_X_REGNUM, buf);
memcpy (valbuf, buf + 1, 1);
break;
case 4:
memcpy ((char*) valbuf + 2, buf, 2);
- regcache_raw_read (regcache, HARD_X_REGNUM, buf);
+ regcache->raw_read (HARD_X_REGNUM, buf);
memcpy (valbuf, buf, 2);
break;
default:
- error ("bad size for return value");
+ error (_("bad size for return value"));
}
}
-/* Should call_function allocate stack space for a struct return? */
-static int
-m68hc11_use_struct_convention (int gcc_p, struct type *type)
-{
- return (TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
- || TYPE_LENGTH (type) > 4);
-}
-
-static int
-m68hc11_return_value_on_stack (struct type *type)
-{
- return TYPE_LENGTH (type) > 4;
-}
-
-/* Extract from an array REGBUF containing the (raw) register state
- the address in which a function should return its structure value,
- as a CORE_ADDR (or an expression that can be used as one). */
-static CORE_ADDR
-m68hc11_extract_struct_value_address (struct regcache *regcache)
-{
- char buf[M68HC11_REG_SIZE];
-
- regcache_cooked_read (regcache, HARD_D_REGNUM, buf);
- return extract_unsigned_integer (buf, M68HC11_REG_SIZE);
-}
-
-/* Function: push_return_address (pc)
- Set up the return address for the inferior function call.
- Needed for targets where we don't actually execute a JSR/BSR instruction */
-
-static CORE_ADDR
-m68hc11_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
+static enum return_value_convention
+m68hc11_return_value (struct gdbarch *gdbarch, struct value *function,
+ struct type *valtype, struct regcache *regcache,
+ gdb_byte *readbuf, const gdb_byte *writebuf)
{
- char valbuf[2];
-
- pc = CALL_DUMMY_ADDRESS ();
- sp -= 2;
- store_unsigned_integer (valbuf, 2, pc);
- write_memory (sp + STACK_CORRECTION, valbuf, 2);
- return sp;
+ 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;
+ }
}
/* Test whether the ELF symbol corresponds to a function using rtc or
if (flags & STO_M68HC12_INTERRUPT)
MSYMBOL_SET_RTI (msym);
}
-
-static int
-gdb_print_insn_m68hc11 (bfd_vma memaddr, disassemble_info *info)
-{
- if (TARGET_ARCHITECTURE->arch == bfd_arch_m68hc11)
- return print_insn_m68hc11 (memaddr, info);
- else
- return print_insn_m68hc12 (memaddr, info);
-}
-
\f
/* 68HC11/68HC12 register groups.
|| regnum == SOFT_TMP_REGNUM
|| regnum == SOFT_ZS_REGNUM
|| regnum == SOFT_XY_REGNUM)
- && m68hc11_register_name (regnum)));
+ && m68hc11_register_name (gdbarch, regnum)));
}
/* Group to identify gcc soft registers (d1..dN). */
if (group == m68hc11_soft_reggroup)
{
- return regnum >= SOFT_D1_REGNUM && m68hc11_register_name (regnum);
+ return regnum >= SOFT_D1_REGNUM
+ && m68hc11_register_name (gdbarch, regnum);
}
if (group == m68hc11_hard_reggroup)
m68hc11_gdbarch_init (struct gdbarch_info info,
struct gdbarch_list *arches)
{
- static LONGEST m68hc11_call_dummy_words[] =
- {0};
struct gdbarch *gdbarch;
struct gdbarch_tdep *tdep;
int elf_flags;
else
elf_flags = 0;
- /* try to find a pre-existing architecture */
+ /* 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))
return arches->gdbarch;
}
- /* Need a new architecture. Fill in a target specific vector. */
- tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
+ /* Need a new architecture. Fill in a target specific vector. */
+ tdep = XCNEW (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
tdep->elf_flags = elf_flags;
- /* 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);
-
switch (info.bfd_arch_info->arch)
{
case bfd_arch_m68hc11:
set_gdbarch_short_bit (gdbarch, 16);
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);
+ if (elf_flags & E_M68HC11_F64)
+ {
+ set_gdbarch_double_bit (gdbarch, 64);
+ set_gdbarch_double_format (gdbarch, floatformats_ieee_double);
+ }
+ else
+ {
+ set_gdbarch_double_bit (gdbarch, 32);
+ set_gdbarch_double_format (gdbarch, floatformats_ieee_single);
+ }
set_gdbarch_long_double_bit (gdbarch, 64);
set_gdbarch_long_bit (gdbarch, 32);
set_gdbarch_ptr_bit (gdbarch, 16);
/* Set register info. */
set_gdbarch_fp0_regnum (gdbarch, -1);
- set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, m68hc11_frame_init_saved_regs);
- set_gdbarch_frame_args_skip (gdbarch, 0);
-
- set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
- set_gdbarch_deprecated_dummy_write_sp (gdbarch, deprecated_write_sp);
set_gdbarch_sp_regnum (gdbarch, HARD_SP_REGNUM);
- set_gdbarch_deprecated_fp_regnum (gdbarch, SOFT_FP_REGNUM);
set_gdbarch_register_name (gdbarch, m68hc11_register_name);
set_gdbarch_register_type (gdbarch, m68hc11_register_type);
set_gdbarch_pseudo_register_read (gdbarch, m68hc11_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, m68hc11_pseudo_register_write);
- set_gdbarch_deprecated_call_dummy_words (gdbarch, m68hc11_call_dummy_words);
- set_gdbarch_deprecated_sizeof_call_dummy_words (gdbarch, sizeof (m68hc11_call_dummy_words));
- set_gdbarch_deprecated_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
- set_gdbarch_extract_return_value (gdbarch, m68hc11_extract_return_value);
- 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_deprecated_store_struct_return (gdbarch, m68hc11_store_struct_return);
- set_gdbarch_store_return_value (gdbarch, m68hc11_store_return_value);
- set_gdbarch_extract_struct_value_address (gdbarch, m68hc11_extract_struct_value_address);
-
- set_gdbarch_deprecated_frame_chain (gdbarch, m68hc11_frame_chain);
- set_gdbarch_deprecated_frame_saved_pc (gdbarch, m68hc11_frame_saved_pc);
- set_gdbarch_deprecated_frame_args_address (gdbarch, m68hc11_frame_args_address);
- set_gdbarch_deprecated_saved_pc_after_call (gdbarch, m68hc11_saved_pc_after_call);
-
- set_gdbarch_deprecated_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
-
- 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_deprecated_init_extra_frame_info (gdbarch, m68hc11_init_extra_frame_info);
- set_gdbarch_deprecated_pop_frame (gdbarch, m68hc11_pop_frame);
+ set_gdbarch_push_dummy_call (gdbarch, m68hc11_push_dummy_call);
+
+ set_gdbarch_return_value (gdbarch, m68hc11_return_value);
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);
+ set_gdbarch_breakpoint_kind_from_pc (gdbarch,
+ m68hc11_breakpoint::kind_from_pc);
+ set_gdbarch_sw_breakpoint_from_kind (gdbarch,
+ m68hc11_breakpoint::bp_from_kind);
m68hc11_add_reggroups (gdbarch);
set_gdbarch_register_reggroup_p (gdbarch, m68hc11_register_reggroup_p);
set_gdbarch_print_registers_info (gdbarch, m68hc11_print_registers_info);
+ /* Hook in the DWARF CFI frame unwinder. */
+ dwarf2_append_unwinders (gdbarch);
+
+ frame_unwind_append_unwinder (gdbarch, &m68hc11_frame_unwind);
+ 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_dummy_id (gdbarch, m68hc11_dummy_id);
+
/* Minsymbol frobbing. */
set_gdbarch_elf_make_msymbol_special (gdbarch,
m68hc11_elf_make_msymbol_special);
return gdbarch;
}
-extern initialize_file_ftype _initialize_m68hc11_tdep; /* -Wmissing-prototypes */
-
void
_initialize_m68hc11_tdep (void)
{
register_gdbarch_init (bfd_arch_m68hc11, m68hc11_gdbarch_init);
register_gdbarch_init (bfd_arch_m68hc12, m68hc11_gdbarch_init);
m68hc11_init_reggroups ();
-
- deprecate_cmd (add_com ("regs", class_vars, show_regs,
- "Print all registers"),
- "info registers");
}
projects / deliverable / binutils-gdb.git / blobdiff