/* Target-machine dependent code for Renesas H8/300, for GDB.
- Copyright (C) 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999,
- 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1988-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "regcache.h"
#include "gdbcore.h"
#include "objfiles.h"
-#include "gdb_assert.h"
#include "dis-asm.h"
#include "dwarf2-frame.h"
#include "frame-base.h"
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct h8300_frame_cache *cache;
- char buf[4];
int i;
CORE_ADDR current_pc;
for (argument = 0; argument < nargs; argument++)
{
+ struct cleanup *back_to;
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);
- gdb_byte *padded = alloca (padded_len);
+ gdb_byte *padded = xmalloc (padded_len);
+ back_to = make_cleanup (xfree, padded);
memset (padded, 0, padded_len);
memcpy (len < wordsize ? padded + padded_len - len : padded,
subsequent arguments go on the stack. */
reg = E_ARGLAST_REGNUM + 1;
}
+
+ do_cleanups (back_to);
}
/* Store return address. */
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- int len = TYPE_LENGTH (type);
- ULONGEST c, addr;
+ ULONGEST c;
- switch (len)
+ switch (TYPE_LENGTH (type))
{
case 1:
case 2:
case 4:
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
- store_unsigned_integer (valbuf, len, byte_order, c);
+ store_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order, c);
break;
case 8: /* long long is now 8 bytes. */
if (TYPE_CODE (type) == TYPE_CODE_INT)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- int len = TYPE_LENGTH (type);
ULONGEST val;
- switch (len)
+ switch (TYPE_LENGTH (type))
{
case 1:
case 2: /* short... */
- val = extract_unsigned_integer (valbuf, len, byte_order);
+ val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
break;
case 4: /* long, float */
- val = extract_unsigned_integer (valbuf, len, byte_order);
+ val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
(val >> 16) & 0xffff);
regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM, val & 0xffff);
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- int len = TYPE_LENGTH (type);
ULONGEST val;
- switch (len)
+ switch (TYPE_LENGTH (type))
{
case 1:
case 2:
case 4: /* long, float */
- val = extract_unsigned_integer (valbuf, len, byte_order);
+ val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
break;
case 8:
- val = extract_unsigned_integer (valbuf, len, byte_order);
+ val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
(val >> 32) & 0xffffffff);
regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM,
}
static enum return_value_convention
-h8300_return_value (struct gdbarch *gdbarch, struct type *func_type,
+h8300_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
}
static enum return_value_convention
-h8300h_return_value (struct gdbarch *gdbarch, struct type *func_type,
+h8300h_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
return RETURN_VALUE_REGISTER_CONVENTION;
}
-static struct cmd_list_element *setmachinelist;
+/* Implementation of 'register_sim_regno' gdbarch method. */
+
+static int
+h8300_register_sim_regno (struct gdbarch *gdbarch, int regnum)
+{
+ /* Only makes sense to supply raw registers. */
+ gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
+
+ /* We hide the raw ccr from the user by making it nameless. Because
+ the default register_sim_regno hook returns
+ LEGACY_SIM_REGNO_IGNORE for unnamed registers, we need to
+ override it. The sim register numbering is compatible with
+ gdb's. */
+ return regnum;
+}
static const char *
h8300_register_name (struct gdbarch *gdbarch, int regno)
}
}
+/* Helpers for h8300_pseudo_register_read. We expose ccr/exr as
+ pseudo-registers to users with smaller sizes than the corresponding
+ raw registers. These helpers extend/narrow the values. */
+
+static enum register_status
+pseudo_from_raw_register (struct gdbarch *gdbarch, struct regcache *regcache,
+ gdb_byte *buf, int pseudo_regno, int raw_regno)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ enum register_status status;
+ ULONGEST val;
+
+ status = regcache_raw_read_unsigned (regcache, raw_regno, &val);
+ if (status == REG_VALID)
+ store_unsigned_integer (buf,
+ register_size (gdbarch, pseudo_regno),
+ byte_order, val);
+ return status;
+}
+
+/* See pseudo_from_raw_register. */
+
+static void
+raw_from_pseudo_register (struct gdbarch *gdbarch, struct regcache *regcache,
+ const gdb_byte *buf, int raw_regno, int pseudo_regno)
+{
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ ULONGEST val;
+
+ val = extract_unsigned_integer (buf, register_size (gdbarch, pseudo_regno),
+ byte_order);
+ regcache_raw_write_unsigned (regcache, raw_regno, val);
+}
+
static enum register_status
h8300_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache, int regno,
gdb_byte *buf)
{
if (regno == E_PSEUDO_CCR_REGNUM (gdbarch))
- return regcache_raw_read (regcache, E_CCR_REGNUM, buf);
+ {
+ return pseudo_from_raw_register (gdbarch, regcache, buf,
+ regno, E_CCR_REGNUM);
+ }
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch))
- return regcache_raw_read (regcache, E_EXR_REGNUM, buf);
+ {
+ return pseudo_from_raw_register (gdbarch, regcache, buf,
+ regno, E_EXR_REGNUM);
+ }
else
return regcache_raw_read (regcache, regno, buf);
}
const gdb_byte *buf)
{
if (regno == E_PSEUDO_CCR_REGNUM (gdbarch))
- regcache_raw_write (regcache, E_CCR_REGNUM, buf);
+ raw_from_pseudo_register (gdbarch, regcache, buf, E_CCR_REGNUM, regno);
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch))
- regcache_raw_write (regcache, E_EXR_REGNUM, buf);
+ raw_from_pseudo_register (gdbarch, regcache, buf, E_EXR_REGNUM, regno);
else
regcache_raw_write (regcache, regno, buf);
}
return regno;
}
-const static unsigned char *
+static const unsigned char *
h8300_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
int *lenptr)
{
gdbarch = gdbarch_alloc (&info, 0);
+ set_gdbarch_register_sim_regno (gdbarch, h8300_register_sim_regno);
+
switch (info.bfd_arch_info->mach)
{
case bfd_mach_h8300:
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_double_format (gdbarch, floatformats_ieee_single);
set_gdbarch_long_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_long_double_format (gdbarch, floatformats_ieee_single);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
projects / platform / upstream / binutils.git / blobdiff