#include "defs.h"
#include "frame.h"
#include "frame-unwind.h"
#include "frame-base.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"
#include "symfile.h"
#include "objfiles.h"
#include "language.h"
#include "arch-utils.h"
#include "regcache.h"
#include "remote.h"
#include "floatformat.h"
#include "gdb/sim-d10v.h"
#include "sim-regno.h"
#include "disasm.h"
#include "trad-frame.h"
#include "gdb_assert.h"
struct gdbarch_tdep
{
int a0_regnum;
int nr_dmap_regs;
unsigned long (*dmap_register) (void *regcache, int nr);
unsigned long (*imap_register) (void *regcache, int nr);
};
enum memspace {
DMEM_START = 0x2000000,
IMEM_START = 0x1000000,
STACK_START = 0x200bffe
};
enum
{
R0_REGNUM = 0,
R3_REGNUM = 3,
D10V_FP_REGNUM = 11,
LR_REGNUM = 13,
D10V_SP_REGNUM = 15,
PSW_REGNUM = 16,
D10V_PC_REGNUM = 18,
NR_IMAP_REGS = 2,
NR_A_REGS = 2,
TS2_NUM_REGS = 37,
TS3_NUM_REGS = 42,
ARG1_REGNUM = R0_REGNUM,
ARGN_REGNUM = R3_REGNUM
};
static int
nr_dmap_regs (struct gdbarch *gdbarch)
{
return gdbarch_tdep (gdbarch)->nr_dmap_regs;
}
static int
a0_regnum (struct gdbarch *gdbarch)
{
return gdbarch_tdep (gdbarch)->a0_regnum;
}
extern void _initialize_d10v_tdep (void);
static void d10v_eva_prepare_to_trace (void);
static void d10v_eva_get_trace_data (void);
static CORE_ADDR
d10v_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
{
return sp & ~3;
}
static const unsigned char *
d10v_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
{
static unsigned char breakpoint[] =
{0x2f, 0x90, 0x5e, 0x00};
*lenptr = sizeof (breakpoint);
return breakpoint;
}
enum ts2_regnums
{
TS2_IMAP0_REGNUM = 32,
TS2_DMAP_REGNUM = 34,
TS2_NR_DMAP_REGS = 1,
TS2_A0_REGNUM = 35
};
static const char *
d10v_ts2_register_name (int reg_nr)
{
static char *register_names[] =
{
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"psw", "bpsw", "pc", "bpc", "cr4", "cr5", "cr6", "rpt_c",
"rpt_s", "rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15",
"imap0", "imap1", "dmap", "a0", "a1"
};
if (reg_nr < 0)
return NULL;
if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
return NULL;
return register_names[reg_nr];
}
enum ts3_regnums
{
TS3_IMAP0_REGNUM = 36,
TS3_DMAP0_REGNUM = 38,
TS3_NR_DMAP_REGS = 4,
TS3_A0_REGNUM = 32
};
static const char *
d10v_ts3_register_name (int reg_nr)
{
static char *register_names[] =
{
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"psw", "bpsw", "pc", "bpc", "cr4", "cr5", "cr6", "rpt_c",
"rpt_s", "rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15",
"a0", "a1",
"spi", "spu",
"imap0", "imap1",
"dmap0", "dmap1", "dmap2", "dmap3"
};
if (reg_nr < 0)
return NULL;
if (reg_nr >= (sizeof (register_names) / sizeof (*register_names)))
return NULL;
return register_names[reg_nr];
}
static unsigned long
d10v_ts2_dmap_register (void *regcache, int reg_nr)
{
switch (reg_nr)
{
case 0:
case 1:
return 0x2000;
case 2:
{
ULONGEST reg;
regcache_cooked_read_unsigned (regcache, TS2_DMAP_REGNUM, ®);
return reg;
}
default:
return 0;
}
}
static unsigned long
d10v_ts3_dmap_register (void *regcache, int reg_nr)
{
ULONGEST reg;
regcache_cooked_read_unsigned (regcache, TS3_DMAP0_REGNUM + reg_nr, ®);
return reg;
}
static unsigned long
d10v_ts2_imap_register (void *regcache, int reg_nr)
{
ULONGEST reg;
regcache_cooked_read_unsigned (regcache, TS2_IMAP0_REGNUM + reg_nr, ®);
return reg;
}
static unsigned long
d10v_ts3_imap_register (void *regcache, int reg_nr)
{
ULONGEST reg;
regcache_cooked_read_unsigned (regcache, TS3_IMAP0_REGNUM + reg_nr, ®);
return reg;
}
static int
d10v_ts2_register_sim_regno (int nr)
{
gdb_assert (nr >= 0 && nr < NUM_REGS);
if (nr >= TS2_IMAP0_REGNUM
&& nr < TS2_IMAP0_REGNUM + NR_IMAP_REGS)
return nr - TS2_IMAP0_REGNUM + SIM_D10V_IMAP0_REGNUM;
if (nr == TS2_DMAP_REGNUM)
return nr - TS2_DMAP_REGNUM + SIM_D10V_TS2_DMAP_REGNUM;
if (nr >= TS2_A0_REGNUM
&& nr < TS2_A0_REGNUM + NR_A_REGS)
return nr - TS2_A0_REGNUM + SIM_D10V_A0_REGNUM;
return nr;
}
static int
d10v_ts3_register_sim_regno (int nr)
{
gdb_assert (nr >= 0 && nr < NUM_REGS);
if (nr >= TS3_IMAP0_REGNUM
&& nr < TS3_IMAP0_REGNUM + NR_IMAP_REGS)
return nr - TS3_IMAP0_REGNUM + SIM_D10V_IMAP0_REGNUM;
if (nr >= TS3_DMAP0_REGNUM
&& nr < TS3_DMAP0_REGNUM + TS3_NR_DMAP_REGS)
return nr - TS3_DMAP0_REGNUM + SIM_D10V_DMAP0_REGNUM;
if (nr >= TS3_A0_REGNUM
&& nr < TS3_A0_REGNUM + NR_A_REGS)
return nr - TS3_A0_REGNUM + SIM_D10V_A0_REGNUM;
return nr;
}
static struct type *
d10v_register_type (struct gdbarch *gdbarch, int reg_nr)
{
if (reg_nr == D10V_PC_REGNUM)
return builtin_type_void_func_ptr;
if (reg_nr == D10V_SP_REGNUM || reg_nr == D10V_FP_REGNUM)
return builtin_type_void_data_ptr;
else if (reg_nr >= a0_regnum (gdbarch)
&& reg_nr < (a0_regnum (gdbarch) + NR_A_REGS))
return builtin_type_int64;
else
return builtin_type_int16;
}
static int
d10v_iaddr_p (CORE_ADDR x)
{
return (((x) & 0x3000000) == IMEM_START);
}
static CORE_ADDR
d10v_make_daddr (CORE_ADDR x)
{
return ((x) | DMEM_START);
}
static CORE_ADDR
d10v_make_iaddr (CORE_ADDR x)
{
if (d10v_iaddr_p (x))
return x;
else
return (((x) << 2) | IMEM_START);
}
static CORE_ADDR
d10v_convert_iaddr_to_raw (CORE_ADDR x)
{
return (((x) >> 2) & 0xffff);
}
static CORE_ADDR
d10v_convert_daddr_to_raw (CORE_ADDR x)
{
return ((x) & 0xffff);
}
static void
d10v_address_to_pointer (struct type *type, void *buf, CORE_ADDR addr)
{
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
{
store_unsigned_integer (buf, TYPE_LENGTH (type),
d10v_convert_daddr_to_raw (addr));
}
}
static CORE_ADDR
d10v_pointer_to_address (struct type *type, const void *buf)
{
CORE_ADDR addr = extract_unsigned_integer (buf, TYPE_LENGTH (type));
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);
return val;
}
static enum return_value_convention
d10v_return_value (struct gdbarch *gdbarch, struct type *valtype,
struct regcache *regcache, void *readbuf,
const void *writebuf)
{
if (TYPE_LENGTH (valtype) > 8)
return RETURN_VALUE_STRUCT_CONVENTION;
if (TYPE_LENGTH (valtype) == 5
|| TYPE_LENGTH (valtype) == 6)
return RETURN_VALUE_STRUCT_CONVENTION;
if (TYPE_LENGTH (valtype) == 1)
{
if (readbuf)
{
ULONGEST regval;
regcache_cooked_read_unsigned (regcache, R0_REGNUM,
®val);
store_unsigned_integer (readbuf, TYPE_LENGTH (valtype), regval);
}
if (writebuf)
{
ULONGEST regval;
if (TYPE_CODE (valtype) == TYPE_CODE_INT)
regval = unpack_long (valtype, writebuf);
else
regval = extract_unsigned_integer (writebuf, 1);
regcache_cooked_write_unsigned (regcache, R0_REGNUM, regval);
}
return RETURN_VALUE_REGISTER_CONVENTION;
}
if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
|| TYPE_CODE (valtype) == TYPE_CODE_UNION)
&& TYPE_NFIELDS (valtype) > 1
&& TYPE_FIELD_BITPOS (valtype, 1) == 8)
return RETURN_VALUE_STRUCT_CONVENTION;
if (writebuf || readbuf)
{
int reg;
gdb_assert (TYPE_LENGTH (valtype) <= 8);
for (reg = 0; (reg * 2) + 1 < TYPE_LENGTH (valtype); reg++)
{
if (readbuf)
regcache_cooked_read (regcache, R0_REGNUM + reg,
(bfd_byte *) readbuf + reg * 2);
if (writebuf)
regcache_cooked_write (regcache, R0_REGNUM + reg,
(bfd_byte *) writebuf + reg * 2);
}
if ((reg * 2) < TYPE_LENGTH (valtype))
{
if (readbuf)
regcache_cooked_read_part (regcache, R0_REGNUM + reg,
0, 1, (bfd_byte *) readbuf + reg * 2);
if (writebuf)
regcache_cooked_write_part (regcache, R0_REGNUM + reg,
0, 1, (bfd_byte *) writebuf + reg * 2);
}
}
return RETURN_VALUE_REGISTER_CONVENTION;
}
static int
check_prologue (unsigned short op)
{
if ((op & 0x7E1F) == 0x6C1F)
return 1;
if ((op & 0x7E3F) == 0x6E1F)
return 1;
if ((op & 0x7FE1) == 0x01E1)
return 1;
if (op == 0x417E)
return 1;
if (op == 0x5E00)
return 1;
if ((op & 0x7E1F) == 0x681E)
return 1;
if ((op & 0x7E3F) == 0x3A1E)
return 1;
return 0;
}
static CORE_ADDR
d10v_skip_prologue (CORE_ADDR pc)
{
unsigned long op;
unsigned short op1, op2;
CORE_ADDR func_addr, func_end;
struct symtab_and_line sal;
if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
{
sal = find_pc_line (func_addr, 0);
if (sal.end && sal.end < func_end)
return sal.end;
}
if (target_read_memory (pc, (char *) &op, 4))
return pc;
while (1)
{
op = (unsigned long) read_memory_integer (pc, 4);
if ((op & 0xC0000000) == 0xC0000000)
{
if (((op & 0x3FFF0000) != 0x01FF0000) &&
((op & 0x3F0F0000) != 0x340F0000) &&
((op & 0x3F1F0000) != 0x350F0000))
break;
}
else
{
if ((op & 0xC0000000) == 0x80000000)
{
op2 = (op & 0x3FFF8000) >> 15;
op1 = op & 0x7FFF;
}
else
{
op1 = (op & 0x3FFF8000) >> 15;
op2 = op & 0x7FFF;
}
if (check_prologue (op1))
{
if (!check_prologue (op2))
{
if (op1 != 0x5E00)
pc += 4;
break;
}
}
else
break;
}
pc += 4;
}
return pc;
}
struct d10v_unwind_cache
{
CORE_ADDR prev_sp;
CORE_ADDR base;
int size;
LONGEST sp_offset;
LONGEST r11_offset;
int uses_frame;
struct trad_frame_saved_reg *saved_regs;
};
static int
prologue_find_regs (struct d10v_unwind_cache *info, unsigned short op,
CORE_ADDR addr)
{
int n;
if ((op & 0x7E1F) == 0x6C1F)
{
n = (op & 0x1E0) >> 5;
info->sp_offset -= 2;
info->saved_regs[n].addr = info->sp_offset;
return 1;
}
else if ((op & 0x7E3F) == 0x6E1F)
{
n = (op & 0x1E0) >> 5;
info->sp_offset -= 4;
info->saved_regs[n + 0].addr = info->sp_offset + 0;
info->saved_regs[n + 1].addr = info->sp_offset + 2;
return 1;
}
if ((op & 0x7FE1) == 0x01E1)
{
n = (op & 0x1E) >> 1;
if (n == 0)
n = 16;
info->sp_offset -= n;
return 1;
}
if (op == 0x417E)
{
info->uses_frame = 1;
info->r11_offset = info->sp_offset;
return 1;
}
if ((op & 0x7E1F) == 0x6816)
{
n = (op & 0x1E0) >> 5;
info->saved_regs[n].addr = info->r11_offset;
return 1;
}
if (op == 0x5E00)
return 1;
if ((op & 0x7E1F) == 0x681E)
{
n = (op & 0x1E0) >> 5;
info->saved_regs[n].addr = info->sp_offset;
return 1;
}
if ((op & 0x7E3F) == 0x3A1E)
{
n = (op & 0x1E0) >> 5;
info->saved_regs[n + 0].addr = info->sp_offset + 0;
info->saved_regs[n + 1].addr = info->sp_offset + 2;
return 1;
}
return 0;
}
static struct d10v_unwind_cache *
d10v_frame_unwind_cache (struct frame_info *next_frame,
void **this_prologue_cache)
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
CORE_ADDR pc;
ULONGEST prev_sp;
ULONGEST this_base;
unsigned long op;
unsigned short op1, op2;
int i;
struct d10v_unwind_cache *info;
if ((*this_prologue_cache))
return (*this_prologue_cache);
info = FRAME_OBSTACK_ZALLOC (struct d10v_unwind_cache);
(*this_prologue_cache) = info;
info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
info->size = 0;
info->sp_offset = 0;
info->uses_frame = 0;
for (pc = frame_func_unwind (next_frame);
pc > 0 && pc < frame_pc_unwind (next_frame);
pc += 4)
{
op = get_frame_memory_unsigned (next_frame, pc, 4);
if ((op & 0xC0000000) == 0xC0000000)
{
if ((op & 0x3FFF0000) == 0x01FF0000)
{
short n = op & 0xFFFF;
info->sp_offset += n;
}
else if ((op & 0x3F0F0000) == 0x340F0000)
{
short offset = op & 0xFFFF;
short n = (op >> 20) & 0xF;
info->saved_regs[n].addr = info->sp_offset + offset;
}
else if ((op & 0x3F1F0000) == 0x350F0000)
{
short offset = op & 0xFFFF;
short n = (op >> 20) & 0xF;
info->saved_regs[n + 0].addr = info->sp_offset + offset + 0;
info->saved_regs[n + 1].addr = info->sp_offset + offset + 2;
}
else
break;
}
else
{
if ((op & 0xC0000000) == 0x80000000)
{
op2 = (op & 0x3FFF8000) >> 15;
op1 = op & 0x7FFF;
}
else
{
op1 = (op & 0x3FFF8000) >> 15;
op2 = op & 0x7FFF;
}
if (!prologue_find_regs (info, op1, pc)
|| !prologue_find_regs (info, op2, pc))
break;
}
}
info->size = -info->sp_offset;
if (info->uses_frame)
{
frame_unwind_unsigned_register (next_frame, D10V_FP_REGNUM, &this_base);
prev_sp = this_base + info->size;
}
else
{
frame_unwind_unsigned_register (next_frame, D10V_SP_REGNUM, &this_base);
prev_sp = this_base + info->size;
}
info->prev_sp = d10v_make_daddr (prev_sp);
info->base = d10v_make_daddr (this_base);
for (i = 0; i < NUM_REGS - 1; i++)
if (trad_frame_addr_p (info->saved_regs, i))
{
info->saved_regs[i].addr = (info->prev_sp + info->saved_regs[i].addr);
}
info->saved_regs[D10V_PC_REGNUM] = info->saved_regs[LR_REGNUM];
trad_frame_set_value (info->saved_regs, D10V_SP_REGNUM,
d10v_make_daddr (prev_sp));
return info;
}
static void
d10v_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file,
struct frame_info *frame, int regnum, int all)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
if (regnum >= 0)
{
default_print_registers_info (gdbarch, file, frame, regnum, all);
return;
}
{
ULONGEST pc, psw, rpt_s, rpt_e, rpt_c;
pc = get_frame_register_unsigned (frame, D10V_PC_REGNUM);
psw = get_frame_register_unsigned (frame, PSW_REGNUM);
rpt_s = get_frame_register_unsigned (frame, frame_map_name_to_regnum (frame, "rpt_s", -1));
rpt_e = get_frame_register_unsigned (frame, frame_map_name_to_regnum (frame, "rpt_e", -1));
rpt_c = get_frame_register_unsigned (frame, frame_map_name_to_regnum (frame, "rpt_c", -1));
fprintf_filtered (file, "PC=%04lx (0x%lx) PSW=%04lx RPT_S=%04lx RPT_E=%04lx RPT_C=%04lx\n",
(long) pc, (long) d10v_make_iaddr (pc), (long) psw,
(long) rpt_s, (long) rpt_e, (long) rpt_c);
}
{
int group;
for (group = 0; group < 16; group += 8)
{
int r;
fprintf_filtered (file, "R%d-R%-2d", group, group + 7);
for (r = group; r < group + 8; r++)
{
ULONGEST tmp;
tmp = get_frame_register_unsigned (frame, r);
fprintf_filtered (file, " %04lx", (long) tmp);
}
fprintf_filtered (file, "\n");
}
}
{
int a;
for (a = 0; a < NR_IMAP_REGS; a++)
{
if (a > 0)
fprintf_filtered (file, " ");
fprintf_filtered (file, "IMAP%d %04lx", a,
tdep->imap_register (current_regcache, a));
}
if (nr_dmap_regs (gdbarch) == 1)
fprintf_filtered (file, " DMAP %04lx\n",
tdep->dmap_register (current_regcache, 2));
else
{
for (a = 0; a < nr_dmap_regs (gdbarch); a++)
{
fprintf_filtered (file, " DMAP%d %04lx", a,
tdep->dmap_register (current_regcache, a));
}
fprintf_filtered (file, "\n");
}
}
{
char num[MAX_REGISTER_SIZE];
int a;
fprintf_filtered (file, "A0-A%d", NR_A_REGS - 1);
for (a = a0_regnum (gdbarch); a < a0_regnum (gdbarch) + NR_A_REGS; a++)
{
int i;
fprintf_filtered (file, " ");
get_frame_register (frame, a, num);
for (i = 0; i < register_size (gdbarch, a); i++)
{
fprintf_filtered (file, "%02x", (num[i] & 0xff));
}
}
}
fprintf_filtered (file, "\n");
}
static void
show_regs (char *args, int from_tty)
{
d10v_print_registers_info (current_gdbarch, gdb_stdout,
get_current_frame (), -1, 1);
}
static CORE_ADDR
d10v_read_pc (ptid_t ptid)
{
ptid_t save_ptid;
CORE_ADDR pc;
CORE_ADDR retval;
save_ptid = inferior_ptid;
inferior_ptid = ptid;
pc = (int) read_register (D10V_PC_REGNUM);
inferior_ptid = save_ptid;
retval = d10v_make_iaddr (pc);
return retval;
}
static void
d10v_write_pc (CORE_ADDR val, ptid_t ptid)
{
ptid_t save_ptid;
save_ptid = inferior_ptid;
inferior_ptid = ptid;
write_register (D10V_PC_REGNUM, d10v_convert_iaddr_to_raw (val));
inferior_ptid = save_ptid;
}
static CORE_ADDR
d10v_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
ULONGEST sp;
frame_unwind_unsigned_register (next_frame, D10V_SP_REGNUM, &sp);
return d10v_make_daddr (sp);
}
struct stack_item
{
int len;
struct stack_item *prev;
void *data;
};
static struct stack_item *push_stack_item (struct stack_item *prev,
void *contents, int len);
static struct stack_item *
push_stack_item (struct stack_item *prev, void *contents, int len)
{
struct stack_item *si;
si = xmalloc (sizeof (struct stack_item));
si->data = xmalloc (len);
si->len = len;
si->prev = prev;
memcpy (si->data, contents, len);
return si;
}
static struct stack_item *pop_stack_item (struct stack_item *si);
static struct stack_item *
pop_stack_item (struct stack_item *si)
{
struct stack_item *dead = si;
si = si->prev;
xfree (dead->data);
xfree (dead);
return si;
}
static CORE_ADDR
d10v_push_dummy_code (struct gdbarch *gdbarch,
CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc,
struct value **args, int nargs,
struct type *value_type,
CORE_ADDR *real_pc, CORE_ADDR *bp_addr)
{
sp = (sp - 4) & ~3;
(*bp_addr) = d10v_make_iaddr (d10v_convert_iaddr_to_raw (sp));
(*real_pc) = funaddr;
return sp;
}
static CORE_ADDR
d10v_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr,
struct regcache *regcache, CORE_ADDR bp_addr,
int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
int i;
int regnum = ARG1_REGNUM;
struct stack_item *si = NULL;
long val;
regcache_cooked_write_unsigned (regcache, LR_REGNUM,
d10v_convert_iaddr_to_raw (bp_addr));
if (struct_return)
{
regcache_cooked_write_unsigned (regcache, regnum, struct_addr);
regnum++;
}
for (i = 0; i < nargs; i++)
{
struct value *arg = args[i];
struct type *type = check_typedef (VALUE_TYPE (arg));
char *contents = VALUE_CONTENTS (arg);
int len = TYPE_LENGTH (type);
int aligned_regnum = (regnum + 1) & ~1;
if (len <= 2 && regnum <= ARGN_REGNUM)
{
val = extract_unsigned_integer (contents, len);
regcache_cooked_write_unsigned (regcache, regnum++, val);
}
else if (len <= (ARGN_REGNUM - aligned_regnum + 1) * 2)
{
int b;
regnum = aligned_regnum;
for (b = 0; b < (len & ~1); b += 2)
{
val = extract_unsigned_integer (&contents[b], 2);
regcache_cooked_write_unsigned (regcache, regnum++, val);
}
if (b < len)
{
val = extract_unsigned_integer (&contents[b], 1);
regcache_cooked_write_unsigned (regcache, regnum++, (val << 8));
}
}
else
{
regnum = ARGN_REGNUM + 1;
si = push_stack_item (si, contents, len);
}
}
while (si)
{
sp = (sp - si->len) & ~1;
write_memory (sp, si->data, si->len);
si = pop_stack_item (si);
}
regcache_cooked_write_unsigned (regcache, D10V_SP_REGNUM,
d10v_convert_daddr_to_raw (sp));
return sp;
}
static void
remote_d10v_translate_xfer_address (struct gdbarch *gdbarch,
struct regcache *regcache,
CORE_ADDR memaddr, int nr_bytes,
CORE_ADDR *targ_addr, int *targ_len)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
long out_addr;
long out_len;
out_len = sim_d10v_translate_addr (memaddr, nr_bytes, &out_addr, regcache,
tdep->dmap_register, tdep->imap_register);
*targ_addr = out_addr;
*targ_len = out_len;
}
#define DBBC_ADDR (0xd80000)
#define TRACE_BUFFER_BASE (0xf40000)
static void trace_command (char *, int);
static void untrace_command (char *, int);
static void trace_info (char *, int);
static void tdisassemble_command (char *, int);
static void display_trace (int, int);
static int tracing;
static CORE_ADDR last_pc;
static int trace_display;
static int default_trace_show_source = 1;
struct trace_buffer
{
int size;
short *counts;
CORE_ADDR *addrs;
}
trace_data;
static void
trace_command (char *args, int from_tty)
{
trace_data.size = 0;
if (trace_data.counts == NULL)
trace_data.counts = XCALLOC (65536, short);
if (trace_data.addrs == NULL)
trace_data.addrs = XCALLOC (65536, CORE_ADDR);
tracing = 1;
printf_filtered ("Tracing is now on.\n");
}
static void
untrace_command (char *args, int from_tty)
{
tracing = 0;
printf_filtered ("Tracing is now off.\n");
}
static void
trace_info (char *args, int from_tty)
{
int i;
if (trace_data.size)
{
printf_filtered ("%d entries in trace buffer:\n", trace_data.size);
for (i = 0; i < trace_data.size; ++i)
{
printf_filtered ("%d: %d instruction%s at 0x%s\n",
i,
trace_data.counts[i],
(trace_data.counts[i] == 1 ? "" : "s"),
paddr_nz (trace_data.addrs[i]));
}
}
else
printf_filtered ("No entries in trace buffer.\n");
printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off"));
}
static void
d10v_eva_prepare_to_trace (void)
{
if (!tracing)
return;
last_pc = read_register (D10V_PC_REGNUM);
}
static void
d10v_eva_get_trace_data (void)
{
int count, i, j, oldsize;
int trace_addr, trace_seg, trace_cnt, next_cnt;
unsigned int last_trace, trace_word, next_word;
unsigned int *tmpspace;
if (!tracing)
return;
tmpspace = xmalloc (65536 * sizeof (unsigned int));
last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2;
count = 0;
while (last_trace > 0)
{
QUIT;
trace_word =
read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4);
trace_addr = trace_word & 0xffff;
last_trace -= 4;
if (trace_addr == 0xffd5)
continue;
tmpspace[count++] = trace_word;
if (trace_addr == last_pc)
break;
if (count > 65535)
break;
}
for (i = 0; i < count; ++i)
{
trace_word = tmpspace[i];
next_word = ((i == 0) ? 0 : tmpspace[i - 1]);
trace_addr = trace_word & 0xffff;
next_cnt = (next_word >> 24) & 0xff;
j = trace_data.size + count - i - 1;
trace_data.addrs[j] = (trace_addr << 2) + 0x1000000;
trace_data.counts[j] = next_cnt + 1;
}
oldsize = trace_data.size;
trace_data.size += count;
xfree (tmpspace);
if (trace_display)
display_trace (oldsize, trace_data.size);
}
static void
tdisassemble_command (char *arg, int from_tty)
{
int i, count;
CORE_ADDR low, high;
if (!arg)
{
low = 0;
high = trace_data.size;
}
else
{
char *space_index = strchr (arg, ' ');
if (space_index == NULL)
{
low = parse_and_eval_address (arg);
high = low + 5;
}
else
{
*space_index = '\0';
low = parse_and_eval_address (arg);
high = parse_and_eval_address (space_index + 1);
if (high < low)
high = low;
}
}
printf_filtered ("Dump of trace from %s to %s:\n",
paddr_u (low), paddr_u (high));
display_trace (low, high);
printf_filtered ("End of trace dump.\n");
gdb_flush (gdb_stdout);
}
static void
display_trace (int low, int high)
{
int i, count, trace_show_source, first, suppress;
CORE_ADDR next_address;
trace_show_source = default_trace_show_source;
if (!have_full_symbols () && !have_partial_symbols ())
{
trace_show_source = 0;
printf_filtered ("No symbol table is loaded. Use the \"file\" command.\n");
printf_filtered ("Trace will not display any source.\n");
}
first = 1;
suppress = 0;
for (i = low; i < high; ++i)
{
next_address = trace_data.addrs[i];
count = trace_data.counts[i];
while (count-- > 0)
{
QUIT;
if (trace_show_source)
{
struct symtab_and_line sal, sal_prev;
sal_prev = find_pc_line (next_address - 4, 0);
sal = find_pc_line (next_address, 0);
if (sal.symtab)
{
if (first || sal.line != sal_prev.line)
print_source_lines (sal.symtab, sal.line, 1, 0);
suppress = 0;
}
else
{
if (!suppress)
printf_filtered ("No source file for address %s.\n",
local_hex_string ((unsigned long) sal.pc));
suppress = 1;
}
}
first = 0;
print_address (next_address, gdb_stdout);
printf_filtered (":");
printf_filtered ("\t");
wrap_here (" ");
next_address += gdb_print_insn (next_address, gdb_stdout);
printf_filtered ("\n");
gdb_flush (gdb_stdout);
}
}
}
static CORE_ADDR
d10v_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
ULONGEST pc;
frame_unwind_unsigned_register (next_frame, D10V_PC_REGNUM, &pc);
return d10v_make_iaddr (pc);
}
static void
d10v_frame_this_id (struct frame_info *next_frame,
void **this_prologue_cache,
struct frame_id *this_id)
{
struct d10v_unwind_cache *info
= d10v_frame_unwind_cache (next_frame, this_prologue_cache);
CORE_ADDR base;
CORE_ADDR func;
struct frame_id id;
func = frame_func_unwind (next_frame);
base = info->prev_sp;
if (base == STACK_START || base == 0)
return;
id = frame_id_build (base, func);
(*this_id) = id;
}
static void
d10v_frame_prev_register (struct frame_info *next_frame,
void **this_prologue_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
int *realnump, void *bufferp)
{
struct d10v_unwind_cache *info
= d10v_frame_unwind_cache (next_frame, this_prologue_cache);
trad_frame_prev_register (next_frame, info->saved_regs, regnum,
optimizedp, lvalp, addrp, realnump, bufferp);
}
static const struct frame_unwind d10v_frame_unwind = {
NORMAL_FRAME,
d10v_frame_this_id,
d10v_frame_prev_register
};
static const struct frame_unwind *
d10v_frame_sniffer (struct frame_info *next_frame)
{
return &d10v_frame_unwind;
}
static CORE_ADDR
d10v_frame_base_address (struct frame_info *next_frame, void **this_cache)
{
struct d10v_unwind_cache *info
= d10v_frame_unwind_cache (next_frame, this_cache);
return info->base;
}
static const struct frame_base d10v_frame_base = {
&d10v_frame_unwind,
d10v_frame_base_address,
d10v_frame_base_address,
d10v_frame_base_address
};
static struct frame_id
d10v_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
{
return frame_id_build (d10v_unwind_sp (gdbarch, next_frame),
frame_pc_unwind (next_frame));
}
static gdbarch_init_ftype d10v_gdbarch_init;
static struct gdbarch *
d10v_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch *gdbarch;
int d10v_num_regs;
struct gdbarch_tdep *tdep;
gdbarch_register_name_ftype *d10v_register_name;
gdbarch_register_sim_regno_ftype *d10v_register_sim_regno;
arches = gdbarch_list_lookup_by_info (arches, &info);
if (arches != NULL)
return arches->gdbarch;
tdep = XMALLOC (struct gdbarch_tdep);
gdbarch = gdbarch_alloc (&info, tdep);
switch (info.bfd_arch_info->mach)
{
case bfd_mach_d10v_ts2:
d10v_num_regs = 37;
d10v_register_name = d10v_ts2_register_name;
d10v_register_sim_regno = d10v_ts2_register_sim_regno;
tdep->a0_regnum = TS2_A0_REGNUM;
tdep->nr_dmap_regs = TS2_NR_DMAP_REGS;
tdep->dmap_register = d10v_ts2_dmap_register;
tdep->imap_register = d10v_ts2_imap_register;
break;
default:
case bfd_mach_d10v_ts3:
d10v_num_regs = 42;
d10v_register_name = d10v_ts3_register_name;
d10v_register_sim_regno = d10v_ts3_register_sim_regno;
tdep->a0_regnum = TS3_A0_REGNUM;
tdep->nr_dmap_regs = TS3_NR_DMAP_REGS;
tdep->dmap_register = d10v_ts3_dmap_register;
tdep->imap_register = d10v_ts3_imap_register;
break;
}
set_gdbarch_read_pc (gdbarch, d10v_read_pc);
set_gdbarch_write_pc (gdbarch, d10v_write_pc);
set_gdbarch_unwind_sp (gdbarch, d10v_unwind_sp);
set_gdbarch_num_regs (gdbarch, d10v_num_regs);
set_gdbarch_sp_regnum (gdbarch, D10V_SP_REGNUM);
set_gdbarch_register_name (gdbarch, d10v_register_name);
set_gdbarch_register_type (gdbarch, d10v_register_type);
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, 8 * TARGET_CHAR_BIT);
set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
switch (info.byte_order)
{
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 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);
break;
default:
internal_error (__FILE__, __LINE__,
"d10v_gdbarch_init: bad byte order for float format");
}
set_gdbarch_return_value (gdbarch, d10v_return_value);
set_gdbarch_push_dummy_code (gdbarch, d10v_push_dummy_code);
set_gdbarch_push_dummy_call (gdbarch, d10v_push_dummy_call);
set_gdbarch_skip_prologue (gdbarch, d10v_skip_prologue);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
set_gdbarch_decr_pc_after_break (gdbarch, 4);
set_gdbarch_breakpoint_from_pc (gdbarch, d10v_breakpoint_from_pc);
set_gdbarch_remote_translate_xfer_address (gdbarch,
remote_d10v_translate_xfer_address);
set_gdbarch_frame_align (gdbarch, d10v_frame_align);
set_gdbarch_register_sim_regno (gdbarch, d10v_register_sim_regno);
set_gdbarch_print_registers_info (gdbarch, d10v_print_registers_info);
frame_unwind_append_sniffer (gdbarch, d10v_frame_sniffer);
frame_base_set_default (gdbarch, &d10v_frame_base);
set_gdbarch_unwind_dummy_id (gdbarch, d10v_unwind_dummy_id);
set_gdbarch_unwind_pc (gdbarch, d10v_unwind_pc);
set_gdbarch_print_insn (gdbarch, print_insn_d10v);
return gdbarch;
}
void
_initialize_d10v_tdep (void)
{
register_gdbarch_init (bfd_arch_d10v, d10v_gdbarch_init);
target_resume_hook = d10v_eva_prepare_to_trace;
target_wait_loop_hook = d10v_eva_get_trace_data;
deprecate_cmd (add_com ("regs", class_vars, show_regs,
"Print all registers"),
"info registers");
add_com ("itrace", class_support, trace_command,
"Enable tracing of instruction execution.");
add_com ("iuntrace", class_support, untrace_command,
"Disable tracing of instruction execution.");
add_com ("itdisassemble", class_vars, tdisassemble_command,
"Disassemble the trace buffer.\n\
Two optional arguments specify a range of trace buffer entries\n\
as reported by info trace (NOT addresses!).");
add_info ("itrace", trace_info,
"Display info about the trace data buffer.");
add_setshow_boolean_cmd ("itracedisplay", no_class, &trace_display,
"Set automatic display of trace.\n",
"Show automatic display of trace.\n",
NULL, NULL, &setlist, &showlist);
add_setshow_boolean_cmd ("itracesource", no_class,
&default_trace_show_source,
"Set display of source code with trace.\n",
"Show display of source code with trace.\n",
NULL, NULL, &setlist, &showlist);
}