/* 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 register_names[reg_nr];
}
-/* Access the DMAP/IMAP registers in a target independent way. */
+/* Access the DMAP/IMAP registers in a target independent way.
+
+ Divide the D10V's 64k data space into four 16k segments:
+ 0x0000 -- 0x3fff, 0x4000 -- 0x7fff, 0x8000 -- 0xbfff, and
+ 0xc000 -- 0xffff.
+
+ On the TS2, the first two segments (0x0000 -- 0x3fff, 0x4000 --
+ 0x7fff) always map to the on-chip data RAM, and the fourth always
+ maps to I/O space. The third (0x8000 - 0xbfff) can be mapped into
+ unified memory or instruction memory, under the control of the
+ single DMAP register.
+
+ On the TS3, there are four DMAP registers, each of which controls
+ one of the segments. */
static unsigned long
d10v_ts2_dmap_register (int reg_nr)
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. */
static struct type *
d10v_register_virtual_type (int reg_nr)
{
- if (reg_nr >= A0_REGNUM
+ if (reg_nr == PC_REGNUM)
+ return builtin_type_void_func_ptr;
+ else if (reg_nr >= A0_REGNUM
&& reg_nr < (A0_REGNUM + NR_A_REGS))
return builtin_type_int64;
- else if (reg_nr == PC_REGNUM
- || reg_nr == SP_REGNUM)
- return builtin_type_int32;
else
return builtin_type_int16;
}
-/* convert $pc and $sp to/from virtual addresses */
-static int
-d10v_register_convertible (int nr)
-{
- return ((nr) == PC_REGNUM || (nr) == SP_REGNUM);
-}
-
-static void
-d10v_register_convert_to_virtual (int regnum, struct type *type, char *from,
- char *to)
-{
- ULONGEST x = extract_unsigned_integer (from, REGISTER_RAW_SIZE (regnum));
- if (regnum == PC_REGNUM)
- x = (x << 2) | IMEM_START;
- else
- x |= DMEM_START;
- store_unsigned_integer (to, TYPE_LENGTH (type), x);
-}
-
-static void
-d10v_register_convert_to_raw (struct type *type, int regnum, char *from,
- char *to)
-{
- ULONGEST x = extract_unsigned_integer (from, TYPE_LENGTH (type));
- x &= 0x3ffff;
- if (regnum == PC_REGNUM)
- x >>= 2;
- store_unsigned_integer (to, 2, x);
-}
-
-
static CORE_ADDR
d10v_make_daddr (CORE_ADDR x)
{
return ((x) & 0xffff);
}
+static void
+d10v_address_to_pointer (struct type *type, void *buf, CORE_ADDR 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)
+ {
+ store_unsigned_integer (buf, TYPE_LENGTH (type),
+ d10v_convert_iaddr_to_raw (addr));
+ }
+ else
+ {
+ /* Strip off any upper segment bits. */
+ store_unsigned_integer (buf, TYPE_LENGTH (type),
+ d10v_convert_daddr_to_raw (addr));
+ }
+}
+
+static CORE_ADDR
+d10v_pointer_to_address (struct type *type, void *buf)
+{
+ CORE_ADDR addr = extract_address (buf, TYPE_LENGTH (type));
+
+ /* 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_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.
REGISTER_RAW_SIZE (FP_REGNUM)))
return (CORE_ADDR) 0;
- return D10V_MAKE_DADDR (read_memory_unsigned_integer (fi->saved_regs[FP_REGNUM],
+ return d10v_make_daddr (read_memory_unsigned_integer (fi->saved_regs[FP_REGNUM],
REGISTER_RAW_SIZE (FP_REGNUM)));
}
fi->extra_info->size = -next_addr;
if (!(fp & 0xffff))
- fp = D10V_MAKE_DADDR (read_register (SP_REGNUM));
+ fp = d10v_make_daddr (read_register (SP_REGNUM));
for (i = 0; i < NUM_REGS - 1; i++)
if (fi->saved_regs[i])
if (fi->saved_regs[LR_REGNUM])
{
CORE_ADDR return_pc = read_memory_unsigned_integer (fi->saved_regs[LR_REGNUM], REGISTER_RAW_SIZE (LR_REGNUM));
- fi->extra_info->return_pc = D10V_MAKE_IADDR (return_pc);
+ fi->extra_info->return_pc = d10v_make_iaddr (return_pc);
}
else
{
- fi->extra_info->return_pc = D10V_MAKE_IADDR (read_register (LR_REGNUM));
+ fi->extra_info->return_pc = d10v_make_iaddr (read_register (LR_REGNUM));
}
/* th SP is not normally (ever?) saved, but check anyway */
int a;
printf_filtered ("PC=%04lx (0x%lx) PSW=%04lx RPT_S=%04lx RPT_E=%04lx RPT_C=%04lx\n",
(long) read_register (PC_REGNUM),
- (long) D10V_MAKE_IADDR (read_register (PC_REGNUM)),
+ (long) d10v_make_iaddr (read_register (PC_REGNUM)),
(long) read_register (PSW_REGNUM),
(long) read_register (24),
(long) read_register (25),
inferior_ptid = ptid;
pc = (int) read_register (PC_REGNUM);
inferior_ptid = save_ptid;
- retval = D10V_MAKE_IADDR (pc);
+ retval = d10v_make_iaddr (pc);
return retval;
}
save_ptid = inferior_ptid;
inferior_ptid = ptid;
- write_register (PC_REGNUM, D10V_CONVERT_IADDR_TO_RAW (val));
+ write_register (PC_REGNUM, d10v_convert_iaddr_to_raw (val));
inferior_ptid = save_ptid;
}
static CORE_ADDR
d10v_read_sp (void)
{
- return (D10V_MAKE_DADDR (read_register (SP_REGNUM)));
+ return (d10v_make_daddr (read_register (SP_REGNUM)));
}
static void
d10v_write_sp (CORE_ADDR val)
{
- 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));
+ write_register (SP_REGNUM, d10v_convert_daddr_to_raw (val));
}
static CORE_ADDR
d10v_read_fp (void)
{
- return (D10V_MAKE_DADDR (read_register (FP_REGNUM)));
+ return (d10v_make_daddr (read_register (FP_REGNUM)));
}
/* Function: push_return_address (pc)
static CORE_ADDR
d10v_push_return_address (CORE_ADDR pc, CORE_ADDR sp)
{
- write_register (LR_REGNUM, D10V_CONVERT_IADDR_TO_RAW (CALL_DUMMY_ADDRESS ()));
+ write_register (LR_REGNUM, d10v_convert_iaddr_to_raw (CALL_DUMMY_ADDRESS ()));
return sp;
}
static CORE_ADDR
-d10v_push_arguments (int nargs, value_ptr *args, CORE_ADDR sp,
+d10v_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
int i;
/* Fill in registers and arg lists */
for (i = 0; i < nargs; i++)
{
- value_ptr arg = args[i];
+ struct value *arg = args[i];
struct type *type = check_typedef (VALUE_TYPE (arg));
char *contents = VALUE_CONTENTS (arg);
int len = TYPE_LENGTH (type);
/* printf ("push: type=%d len=%d\n", type->code, len); */
- if (TYPE_CODE (type) == TYPE_CODE_PTR)
- {
- /* pointers require special handling - first convert and
- then store */
- long val = extract_signed_integer (contents, len);
- len = 2;
- if (TYPE_TARGET_TYPE (type)
- && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
- {
- /* function pointer */
- val = D10V_CONVERT_IADDR_TO_RAW (val);
- }
- else if (D10V_IADDR_P (val))
- {
- /* also function pointer! */
- val = D10V_CONVERT_DADDR_TO_RAW (val);
- }
- else
- {
- /* data pointer */
- val &= 0xFFFF;
- }
- if (regnum <= ARGN_REGNUM)
- write_register (regnum++, val & 0xffff);
- else
- {
- char ptr[2];
- /* arg will go onto stack */
- store_address (ptr, 2, val & 0xffff);
- si = push_stack_item (si, ptr, 2);
- }
- }
- else
{
int aligned_regnum = (regnum + 1) & ~1;
if (len <= 2 && regnum <= ARGN_REGNUM)
{
int len;
/* printf("RET: TYPE=%d len=%d r%d=0x%x\n",type->code, TYPE_LENGTH (type), RET1_REGNUM - R0_REGNUM, (int) extract_unsigned_integer (regbuf + REGISTER_BYTE(RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM))); */
- if (TYPE_CODE (type) == TYPE_CODE_PTR
- && TYPE_TARGET_TYPE (type)
- && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
- {
- /* pointer to function */
- int num;
- short snum;
- snum = extract_address (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
- store_address (valbuf, 4, D10V_MAKE_IADDR (snum));
- }
- else if (TYPE_CODE (type) == TYPE_CODE_PTR)
- {
- /* pointer to data */
- int num;
- short snum;
- snum = extract_address (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
- store_address (valbuf, 4, D10V_MAKE_DADDR (snum));
- }
- else
{
len = TYPE_LENGTH (type);
if (len == 1)
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;
- return (*tm_print_insn) (memaddr, &tm_print_insn_info);
+ return TARGET_PRINT_INSN (memaddr, &tm_print_insn_info);
}
static void
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_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
+ 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);
set_gdbarch_get_saved_register (gdbarch, generic_get_saved_register);
set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy);
- set_gdbarch_register_convertible (gdbarch, d10v_register_convertible);
- set_gdbarch_register_convert_to_virtual (gdbarch, d10v_register_convert_to_virtual);
- set_gdbarch_register_convert_to_raw (gdbarch, d10v_register_convert_to_raw);
-
set_gdbarch_extract_return_value (gdbarch, d10v_extract_return_value);
set_gdbarch_push_arguments (gdbarch, d10v_push_arguments);
set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame);
set_gdbarch_push_return_address (gdbarch, d10v_push_return_address);
- set_gdbarch_d10v_make_daddr (gdbarch, d10v_make_daddr);
- set_gdbarch_d10v_make_iaddr (gdbarch, d10v_make_iaddr);
- set_gdbarch_d10v_daddr_p (gdbarch, d10v_daddr_p);
- set_gdbarch_d10v_iaddr_p (gdbarch, d10v_iaddr_p);
- set_gdbarch_d10v_convert_daddr_to_raw (gdbarch, d10v_convert_daddr_to_raw);
- set_gdbarch_d10v_convert_iaddr_to_raw (gdbarch, d10v_convert_iaddr_to_raw);
-
set_gdbarch_store_struct_return (gdbarch, d10v_store_struct_return);
set_gdbarch_store_return_value (gdbarch, d10v_store_return_value);
set_gdbarch_extract_struct_value_address (gdbarch, d10v_extract_struct_value_address);
projects / deliverable / binutils-gdb.git / blobdiff