/* Target-dependent code for Mitsubishi D10V, for GDB.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
+
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
+ Foundation, Inc.
This file is part of GDB.
#include "floatformat.h"
#include "sim-d10v.h"
-#undef XMALLOC
-#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
-
struct frame_extra_info
{
CORE_ADDR return_pc;
#define DMEM_START 0x2000000
#define IMEM_START 0x1000000
-#define STACK_START 0x0007ffe
+#define STACK_START 0x200bffe
/* d10v register names. */
static int
d10v_frame_chain_valid (CORE_ADDR chain, struct frame_info *frame)
{
- return ((chain) != 0 && (frame) != 0 && (frame)->pc > IMEM_START);
+ return ((chain) != 0 && (frame) != 0
+ && (frame)->pc > IMEM_START
+ && !inside_entry_file (FRAME_SAVED_PC (frame)));
}
static CORE_ADDR
static int
d10v_use_struct_convention (int gcc_p, struct type *type)
{
- return (TYPE_LENGTH (type) > 8);
+ long alignment;
+ int i;
+ /* The d10v only passes a struct in a register when that structure
+ has an alignment that matches the size of a register. */
+ /* If the structure doesn't fit in 4 registers, put it on the
+ stack. */
+ if (TYPE_LENGTH (type) > 8)
+ return 1;
+ /* If the struct contains only one field, don't put it on the stack
+ - gcc can fit it in one or more registers. */
+ if (TYPE_NFIELDS (type) == 1)
+ return 0;
+ alignment = TYPE_LENGTH (TYPE_FIELD_TYPE (type, 0));
+ for (i = 1; i < TYPE_NFIELDS (type); i++)
+ {
+ /* If the alignment changes, just assume it goes on the
+ stack. */
+ if (TYPE_LENGTH (TYPE_FIELD_TYPE (type, i)) != alignment)
+ return 1;
+ }
+ /* If the alignment is suitable for the d10v's 16 bit registers,
+ don't put it on the stack. */
+ if (alignment == 2 || alignment == 4)
+ return 0;
+ return 1;
}
return 2;
}
-/* Number of bytes of storage in the program's representation
- for register N. */
-
-static int
-d10v_register_virtual_size (int reg_nr)
-{
- return TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (reg_nr));
-}
-
/* Return the GDB type object for the "standard" data type
of data in register N. */
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC
|| TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD)
{
-#if 0
- if (! d10v_iaddr_p (addr))
- {
- warning_begin ();
- fprintf_unfiltered (gdb_stderr, "address `");
- print_address_numeric (addr, 1, gdb_stderr);
- fprintf_unfiltered (gdb_stderr, "' is not a code address\n");
- }
-#endif
-
store_unsigned_integer (buf, TYPE_LENGTH (type),
d10v_convert_iaddr_to_raw (addr));
}
/* Is it a code address? */
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC
- || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD)
+ || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_METHOD
+ || TYPE_CODE_SPACE (TYPE_TARGET_TYPE (type)))
return d10v_make_iaddr (addr);
else
return d10v_make_daddr (addr);
}
+static CORE_ADDR
+d10v_integer_to_address (struct type *type, void *buf)
+{
+ LONGEST val;
+ val = unpack_long (type, buf);
+ if (TYPE_CODE (type) == TYPE_CODE_INT
+ && TYPE_LENGTH (type) <= TYPE_LENGTH (builtin_type_void_data_ptr))
+ /* Convert small integers that would would be directly copied into
+ a pointer variable into an address pointing into data space. */
+ return d10v_make_daddr (val & 0xffff);
+ else
+ /* The value is too large to fit in a pointer. Assume this was
+ intentional and that the user in fact specified a raw address. */
+ return val;
+}
/* Store the address of the place in which to copy the structure the
subroutine will return. This is called from call_function.
write_register (SP_REGNUM, d10v_convert_daddr_to_raw (val));
}
-static void
-d10v_write_fp (CORE_ADDR val)
-{
- write_register (FP_REGNUM, d10v_convert_daddr_to_raw (val));
-}
-
static CORE_ADDR
d10v_read_fp (void)
{
internal_error (__FILE__, __LINE__,
"print_insn: no disassembler");
- if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
tm_print_insn_info.endian = BFD_ENDIAN_BIG;
else
tm_print_insn_info.endian = BFD_ENDIAN_LITTLE;
set_gdbarch_read_pc (gdbarch, d10v_read_pc);
set_gdbarch_write_pc (gdbarch, d10v_write_pc);
set_gdbarch_read_fp (gdbarch, d10v_read_fp);
- set_gdbarch_write_fp (gdbarch, d10v_write_fp);
set_gdbarch_read_sp (gdbarch, d10v_read_sp);
set_gdbarch_write_sp (gdbarch, d10v_write_sp);
set_gdbarch_register_byte (gdbarch, d10v_register_byte);
set_gdbarch_register_raw_size (gdbarch, d10v_register_raw_size);
set_gdbarch_max_register_raw_size (gdbarch, 8);
- set_gdbarch_register_virtual_size (gdbarch, d10v_register_virtual_size);
+ set_gdbarch_register_virtual_size (gdbarch, generic_register_virtual_size);
set_gdbarch_max_register_virtual_size (gdbarch, 8);
set_gdbarch_register_virtual_type (gdbarch, d10v_register_virtual_type);
set_gdbarch_addr_bit (gdbarch, 32);
set_gdbarch_address_to_pointer (gdbarch, d10v_address_to_pointer);
set_gdbarch_pointer_to_address (gdbarch, d10v_pointer_to_address);
+ set_gdbarch_integer_to_address (gdbarch, d10v_integer_to_address);
set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_int_bit (gdbarch, 2 * TARGET_CHAR_BIT);
set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
- set_gdbarch_long_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
/* NOTE: The d10v as a 32 bit ``float'' and ``double''. ``long
double'' is 64 bits. */
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
switch (info.byte_order)
{
- case BIG_ENDIAN:
+ case BFD_ENDIAN_BIG:
set_gdbarch_float_format (gdbarch, &floatformat_ieee_single_big);
set_gdbarch_double_format (gdbarch, &floatformat_ieee_single_big);
set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
break;
- case LITTLE_ENDIAN:
+ case BFD_ENDIAN_LITTLE:
set_gdbarch_float_format (gdbarch, &floatformat_ieee_single_little);
set_gdbarch_double_format (gdbarch, &floatformat_ieee_single_little);
set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_little);
projects / deliverable / binutils-gdb.git / blobdiff