/* Target-dependent code for the Motorola 88000 series.
- Copyright 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005, 2007, 2008, 2009 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
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
/* Fetch the instruction at PC. */
static unsigned long
-m88k_fetch_instruction (CORE_ADDR pc)
+m88k_fetch_instruction (CORE_ADDR pc, enum bfd_endian byte_order)
{
- return read_memory_unsigned_integer (pc, 4);
+ return read_memory_unsigned_integer (pc, 4, byte_order);
}
/* Register information. */
/* Return the name of register REGNUM. */
static const char *
-m88k_register_name (int regnum)
+m88k_register_name (struct gdbarch *gdbarch, int regnum)
{
static char *register_names[] =
{
/* SXIP, SNIP, SFIP and R1 contain code addresses. */
if ((regnum >= M88K_SXIP_REGNUM && regnum <= M88K_SFIP_REGNUM)
|| regnum == M88K_R1_REGNUM)
- return builtin_type_void_func_ptr;
+ return builtin_type (gdbarch)->builtin_func_ptr;
/* R30 and R31 typically contains data addresses. */
if (regnum == M88K_R30_REGNUM || regnum == M88K_R31_REGNUM)
- return builtin_type_void_data_ptr;
+ return builtin_type (gdbarch)->builtin_data_ptr;
- return builtin_type_int32;
+ return builtin_type (gdbarch)->builtin_int32;
}
\f
static CORE_ADDR
-m88k_addr_bits_remove (CORE_ADDR addr)
+m88k_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr)
{
/* All instructures are 4-byte aligned. The lower 2 bits of SXIP,
SNIP and SFIP are used for special purposes: bit 0 is the
*LEN and optionally adjust *PC to point to the correct memory
location for inserting the breakpoint. */
-static const unsigned char *
-m88k_breakpoint_from_pc (CORE_ADDR *pc, int *len)
+static const gdb_byte *
+m88k_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pc, int *len)
{
/* tb 0,r0,511 */
- static unsigned char break_insn[] = { 0xf0, 0x00, 0xd1, 0xff };
+ static gdb_byte break_insn[] = { 0xf0, 0x00, 0xd1, 0xff };
*len = sizeof (break_insn);
return break_insn;
CORE_ADDR pc;
pc = frame_unwind_register_unsigned (next_frame, M88K_SXIP_REGNUM);
- return m88k_addr_bits_remove (pc);
+ return m88k_addr_bits_remove (gdbarch, pc);
}
static void
-m88k_write_pc (CORE_ADDR pc, ptid_t ptid)
+m88k_write_pc (struct regcache *regcache, CORE_ADDR pc)
{
/* According to the MC88100 RISC Microprocessor User's Manual,
section 6.4.3.1.2:
with it. We could even (presumably) give it a totally bogus
value. */
- write_register_pid (M88K_SXIP_REGNUM, pc, ptid);
- write_register_pid (M88K_SNIP_REGNUM, pc | 2, ptid);
- write_register_pid (M88K_SFIP_REGNUM, (pc + 4) | 2, ptid);
+ regcache_cooked_write_unsigned (regcache, M88K_SXIP_REGNUM, pc);
+ regcache_cooked_write_unsigned (regcache, M88K_SNIP_REGNUM, pc | 2);
+ regcache_cooked_write_unsigned (regcache, M88K_SFIP_REGNUM, (pc + 4) | 2);
}
\f
m88k_store_arguments (struct regcache *regcache, int nargs,
struct value **args, CORE_ADDR sp)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
int num_register_words = 0;
int num_stack_words = 0;
int i;
if (m88k_integral_or_pointer_p (type) && len < 4)
{
- args[i] = value_cast (builtin_type_int32, args[i]);
+ args[i] = value_cast (builtin_type (gdbarch)->builtin_int32,
+ args[i]);
type = value_type (args[i]);
len = TYPE_LENGTH (type);
}
}
static struct frame_id
-m88k_unwind_dummy_id (struct gdbarch *arch, struct frame_info *next_frame)
+m88k_dummy_id (struct gdbarch *arch, struct frame_info *this_frame)
{
CORE_ADDR sp;
- sp = frame_unwind_register_unsigned (next_frame, M88K_R31_REGNUM);
- return frame_id_build (sp, frame_pc_unwind (next_frame));
+ sp = get_frame_register_unsigned (this_frame, M88K_R31_REGNUM);
+ return frame_id_build (sp, get_frame_pc (this_frame));
}
\f
from WRITEBUF into REGCACHE. */
static enum return_value_convention
-m88k_return_value (struct gdbarch *gdbarch, struct type *type,
- struct regcache *regcache, void *readbuf,
- const void *writebuf)
+m88k_return_value (struct gdbarch *gdbarch, struct type *func_type,
+ struct type *type, struct regcache *regcache,
+ gdb_byte *readbuf, const gdb_byte *writebuf)
{
int len = TYPE_LENGTH (type);
- char buf[8];
+ gdb_byte buf[8];
if (!m88k_integral_or_pointer_p (type) && !m88k_floating_p (type))
return RETURN_VALUE_STRUCT_CONVENTION;
prologue. */
static CORE_ADDR
-m88k_analyze_prologue (CORE_ADDR pc, CORE_ADDR limit,
+m88k_analyze_prologue (struct gdbarch *gdbarch,
+ CORE_ADDR pc, CORE_ADDR limit,
struct m88k_frame_cache *cache)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR end = limit;
/* Provide a dummy cache if necessary. */
while (pc < limit)
{
struct m88k_prologue_insn *pi = m88k_prologue_insn_table;
- unsigned long insn = m88k_fetch_instruction (pc);
+ unsigned long insn = m88k_fetch_instruction (pc, byte_order);
while ((insn & pi->mask) != pi->insn)
pi++;
starting at PC. */
static CORE_ADDR
-m88k_skip_prologue (CORE_ADDR pc)
+m88k_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
struct symtab_and_line sal;
CORE_ADDR func_start, func_end;
return sal.end;
}
- return m88k_analyze_prologue (pc, pc + m88k_max_prologue_size, NULL);
+ return m88k_analyze_prologue (gdbarch, pc, pc + m88k_max_prologue_size,
+ NULL);
}
-struct m88k_frame_cache *
-m88k_frame_cache (struct frame_info *next_frame, void **this_cache)
+static struct m88k_frame_cache *
+m88k_frame_cache (struct frame_info *this_frame, void **this_cache)
{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct m88k_frame_cache *cache;
CORE_ADDR frame_sp;
return *this_cache;
cache = FRAME_OBSTACK_ZALLOC (struct m88k_frame_cache);
- cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
+ cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
cache->fp_offset = -1;
- cache->pc = frame_func_unwind (next_frame);
+ cache->pc = get_frame_func (this_frame);
if (cache->pc != 0)
- {
- CORE_ADDR addr_in_block = frame_unwind_address_in_block (next_frame);
- m88k_analyze_prologue (cache->pc, addr_in_block, cache);
- }
+ m88k_analyze_prologue (gdbarch, cache->pc, get_frame_pc (this_frame),
+ cache);
/* Calculate the stack pointer used in the prologue. */
if (cache->fp_offset != -1)
{
CORE_ADDR fp;
- fp = frame_unwind_register_unsigned (next_frame, M88K_R30_REGNUM);
+ fp = get_frame_register_unsigned (this_frame, M88K_R30_REGNUM);
frame_sp = fp - cache->fp_offset;
}
else
solid guess at what the frame pointer should be. */
if (cache->saved_regs[M88K_R1_REGNUM].addr != -1)
cache->fp_offset = cache->saved_regs[M88K_R1_REGNUM].addr - 4;
- frame_sp = frame_unwind_register_unsigned (next_frame, M88K_R31_REGNUM);
+ frame_sp = get_frame_register_unsigned (this_frame, M88K_R31_REGNUM);
}
/* Now that we know the stack pointer, adjust the location of the
}
static void
-m88k_frame_this_id (struct frame_info *next_frame, void **this_cache,
+m88k_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
- struct m88k_frame_cache *cache = m88k_frame_cache (next_frame, this_cache);
+ struct m88k_frame_cache *cache = m88k_frame_cache (this_frame, this_cache);
/* This marks the outermost frame. */
if (cache->base == 0)
(*this_id) = frame_id_build (cache->base, cache->pc);
}
-static void
-m88k_frame_prev_register (struct frame_info *next_frame, void **this_cache,
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, void *valuep)
+static struct value *
+m88k_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
{
- struct m88k_frame_cache *cache = m88k_frame_cache (next_frame, this_cache);
+ struct m88k_frame_cache *cache = m88k_frame_cache (this_frame, this_cache);
if (regnum == M88K_SNIP_REGNUM || regnum == M88K_SFIP_REGNUM)
{
- if (valuep)
- {
- CORE_ADDR pc;
+ struct value *value;
+ CORE_ADDR pc;
- trad_frame_get_prev_register (next_frame, cache->saved_regs,
- M88K_SXIP_REGNUM, optimizedp,
- lvalp, addrp, realnump, valuep);
+ value = trad_frame_get_prev_register (this_frame, cache->saved_regs,
+ M88K_SXIP_REGNUM);
+ pc = value_as_long (value);
+ release_value (value);
+ value_free (value);
- pc = extract_unsigned_integer (valuep, 4);
- if (regnum == M88K_SFIP_REGNUM)
- pc += 4;
- store_unsigned_integer (valuep, 4, pc + 4);
- }
+ if (regnum == M88K_SFIP_REGNUM)
+ pc += 4;
- /* It's a computed value. */
- *optimizedp = 0;
- *lvalp = not_lval;
- *addrp = 0;
- *realnump = -1;
- return;
+ return frame_unwind_got_constant (this_frame, regnum, pc + 4);
}
- trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
}
static const struct frame_unwind m88k_frame_unwind =
{
NORMAL_FRAME,
m88k_frame_this_id,
- m88k_frame_prev_register
+ m88k_frame_prev_register,
+ NULL,
+ default_frame_sniffer
};
-
-static const struct frame_unwind *
-m88k_frame_sniffer (struct frame_info *next_frame)
-{
- return &m88k_frame_unwind;
-}
\f
static CORE_ADDR
-m88k_frame_base_address (struct frame_info *next_frame, void **this_cache)
+m88k_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
- struct m88k_frame_cache *cache = m88k_frame_cache (next_frame, this_cache);
+ struct m88k_frame_cache *cache = m88k_frame_cache (this_frame, this_cache);
if (cache->fp_offset != -1)
return cache->base + cache->sp_offset + cache->fp_offset;
struct regcache *regcache,
int regnum, const void *gregs, size_t len)
{
- const char *regs = gregs;
+ const gdb_byte *regs = gregs;
int i;
for (i = 0; i < M88K_NUM_REGS; i++)
/* There is no real `long double'. */
set_gdbarch_long_double_bit (gdbarch, 64);
- set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
+ set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
set_gdbarch_num_regs (gdbarch, M88K_NUM_REGS);
set_gdbarch_register_name (gdbarch, m88k_register_name);
/* Call dummy code. */
set_gdbarch_push_dummy_call (gdbarch, m88k_push_dummy_call);
- set_gdbarch_unwind_dummy_id (gdbarch, m88k_unwind_dummy_id);
+ set_gdbarch_dummy_id (gdbarch, m88k_dummy_id);
/* Return value info */
set_gdbarch_return_value (gdbarch, m88k_return_value);
set_gdbarch_write_pc (gdbarch, m88k_write_pc);
frame_base_set_default (gdbarch, &m88k_frame_base);
- frame_unwind_append_sniffer (gdbarch, m88k_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &m88k_frame_unwind);
return gdbarch;
}
projects / thirdparty / binutils-gdb.git / blobdiff