/* Target-dependent code for Mitsubishi D10V, for GDB.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of GDB.
#include "dis-asm.h"
#include "symfile.h"
#include "objfiles.h"
+#include "language.h"
+#include "arch-utils.h"
+
+#include "floatformat.h"
+#include "sim-d10v.h"
+
+#undef XMALLOC
+#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
struct frame_extra_info
{
int size;
};
-/* these are the addresses the D10V-EVA board maps data */
-/* and instruction memory to. */
+struct gdbarch_tdep
+ {
+ int a0_regnum;
+ int nr_dmap_regs;
+ unsigned long (*dmap_register) (int nr);
+ unsigned long (*imap_register) (int nr);
+ int (*register_sim_regno) (int nr);
+ };
+
+/* These are the addresses the D10V-EVA board maps data and
+ instruction memory to. */
-#define DMEM_START 0x0000000
+#define DMEM_START 0x2000000
#define IMEM_START 0x1000000
#define STACK_START 0x0007ffe
-/* d10v register naming conventions */
+/* d10v register names. */
+
+enum
+ {
+ R0_REGNUM = 0,
+ LR_REGNUM = 13,
+ PSW_REGNUM = 16,
+ NR_IMAP_REGS = 2,
+ NR_A_REGS = 2
+ };
+#define NR_DMAP_REGS (gdbarch_tdep (current_gdbarch)->nr_dmap_regs)
+#define A0_REGNUM (gdbarch_tdep (current_gdbarch)->a0_regnum)
+
+/* d10v calling convention. */
#define ARG1_REGNUM R0_REGNUM
#define ARGN_REGNUM 3
/* Local functions */
-extern void _initialize_d10v_tdep PARAMS ((void));
+extern void _initialize_d10v_tdep (void);
-static void d10v_eva_prepare_to_trace PARAMS ((void));
+static void d10v_eva_prepare_to_trace (void);
-static void d10v_eva_get_trace_data PARAMS ((void));
+static void d10v_eva_get_trace_data (void);
-static int prologue_find_regs PARAMS ((unsigned short op, struct frame_info * fi, CORE_ADDR addr));
+static int prologue_find_regs (unsigned short op, struct frame_info *fi,
+ CORE_ADDR addr);
-extern void d10v_frame_init_saved_regs PARAMS ((struct frame_info *));
+extern void d10v_frame_init_saved_regs (struct frame_info *);
-static void do_d10v_pop_frame PARAMS ((struct frame_info * fi));
-
-/* FIXME */
-extern void remote_d10v_translate_xfer_address PARAMS ((CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR * rem_addr, int *rem_len));
+static void do_d10v_pop_frame (struct frame_info *fi);
int
d10v_frame_chain_valid (chain, frame)
return ((chain) != 0 && (frame) != 0 && (frame)->pc > IMEM_START);
}
+static CORE_ADDR
+d10v_stack_align (CORE_ADDR len)
+{
+ return (len + 1) & ~1;
+}
/* Should we use EXTRACT_STRUCT_VALUE_ADDRESS instead of
EXTRACT_RETURN_VALUE? GCC_P is true if compiled with gcc
return breakpoint;
}
-char *
-d10v_register_name (reg_nr)
- int reg_nr;
+/* Map the REG_NR onto an ascii name. Return NULL or an empty string
+ when the reg_nr isn't valid. */
+
+enum ts2_regnums
+ {
+ TS2_IMAP0_REGNUM = 32,
+ TS2_DMAP_REGNUM = 34,
+ TS2_NR_DMAP_REGS = 1,
+ TS2_A0_REGNUM = 35
+ };
+
+static char *
+d10v_ts2_register_name (int reg_nr)
{
static char *register_names[] =
{
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 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];
+}
+
+/* Access the DMAP/IMAP registers in a target independant way. */
+
+static unsigned long
+d10v_ts2_dmap_register (int reg_nr)
+{
+ switch (reg_nr)
+ {
+ case 0:
+ case 1:
+ return 0x2000;
+ case 2:
+ return read_register (TS2_DMAP_REGNUM);
+ default:
+ return 0;
+ }
+}
+
+static unsigned long
+d10v_ts3_dmap_register (int reg_nr)
+{
+ return read_register (TS3_DMAP0_REGNUM + reg_nr);
+}
+
+static unsigned long
+d10v_dmap_register (int reg_nr)
+{
+ return gdbarch_tdep (current_gdbarch)->dmap_register (reg_nr);
+}
+
+static unsigned long
+d10v_ts2_imap_register (int reg_nr)
+{
+ return read_register (TS2_IMAP0_REGNUM + reg_nr);
+}
+
+static unsigned long
+d10v_ts3_imap_register (int reg_nr)
+{
+ return read_register (TS3_IMAP0_REGNUM + reg_nr);
+}
+
+static unsigned long
+d10v_imap_register (int reg_nr)
+{
+ return gdbarch_tdep (current_gdbarch)->imap_register (reg_nr);
+}
+
+/* MAP GDB's internal register numbering (determined by the layout fo
+ the REGISTER_BYTE array) onto the simulator's register
+ numbering. */
+
+static int
+d10v_ts2_register_sim_regno (int nr)
+{
+ 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)
+{
+ 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;
+}
+
+int
+d10v_register_sim_regno (int nr)
+{
+ return gdbarch_tdep (current_gdbarch)->register_sim_regno (nr);
+}
/* Index within `registers' of the first byte of the space for
register REG_NR. */
d10v_register_byte (reg_nr)
int reg_nr;
{
- if (reg_nr > A0_REGNUM)
- return ((reg_nr - A0_REGNUM) * 8 + (A0_REGNUM * 2));
- else
+ if (reg_nr < A0_REGNUM)
return (reg_nr * 2);
+ else if (reg_nr < (A0_REGNUM + NR_A_REGS))
+ return (A0_REGNUM * 2
+ + (reg_nr - A0_REGNUM) * 8);
+ else
+ return (A0_REGNUM * 2
+ + NR_A_REGS * 8
+ + (reg_nr - A0_REGNUM - NR_A_REGS) * 2);
}
/* Number of bytes of storage in the actual machine representation for
d10v_register_raw_size (reg_nr)
int reg_nr;
{
- if (reg_nr >= A0_REGNUM)
+ if (reg_nr < A0_REGNUM)
+ return 2;
+ else if (reg_nr < (A0_REGNUM + NR_A_REGS))
return 8;
else
return 2;
d10v_register_virtual_size (reg_nr)
int reg_nr;
{
- if (reg_nr >= A0_REGNUM)
- return 8;
- else if (reg_nr == PC_REGNUM || reg_nr == SP_REGNUM)
- return 4;
- else
- return 2;
+ return TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (reg_nr));
}
/* Return the GDB type object for the "standard" data type
d10v_register_virtual_type (reg_nr)
int reg_nr;
{
- if (reg_nr >= A0_REGNUM)
- return builtin_type_long_long;
- else if (reg_nr == PC_REGNUM || reg_nr == SP_REGNUM)
- return builtin_type_long;
+ 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_short;
+ return builtin_type_int16;
}
/* convert $pc and $sp to/from virtual addresses */
d10v_frame_init_saved_regs (fi);
/* now update the current registers with the old values */
- for (regnum = A0_REGNUM; regnum < A0_REGNUM + 2; regnum++)
+ for (regnum = A0_REGNUM; regnum < A0_REGNUM + NR_A_REGS; regnum++)
{
if (fi->saved_regs[regnum])
{
int from_tty;
{
int a;
- printf_filtered ("PC=%04x (0x%x) PSW=%04x RPT_S=%04x RPT_E=%04x RPT_C=%04x\n",
- read_register (PC_REGNUM), D10V_MAKE_IADDR (read_register (PC_REGNUM)),
- read_register (PSW_REGNUM),
- read_register (24),
- read_register (25),
- read_register (23));
- printf_filtered ("R0-R7 %04x %04x %04x %04x %04x %04x %04x %04x\n",
- read_register (0),
- read_register (1),
- read_register (2),
- read_register (3),
- read_register (4),
- read_register (5),
- read_register (6),
- read_register (7));
- printf_filtered ("R8-R15 %04x %04x %04x %04x %04x %04x %04x %04x\n",
- read_register (8),
- read_register (9),
- read_register (10),
- read_register (11),
- read_register (12),
- read_register (13),
- read_register (14),
- read_register (15));
- printf_filtered ("IMAP0 %04x IMAP1 %04x DMAP %04x\n",
- read_register (IMAP0_REGNUM),
- read_register (IMAP1_REGNUM),
- read_register (DMAP_REGNUM));
- printf_filtered ("A0-A1");
- for (a = A0_REGNUM; a <= A0_REGNUM + 1; 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) read_register (PSW_REGNUM),
+ (long) read_register (24),
+ (long) read_register (25),
+ (long) read_register (23));
+ printf_filtered ("R0-R7 %04lx %04lx %04lx %04lx %04lx %04lx %04lx %04lx\n",
+ (long) read_register (0),
+ (long) read_register (1),
+ (long) read_register (2),
+ (long) read_register (3),
+ (long) read_register (4),
+ (long) read_register (5),
+ (long) read_register (6),
+ (long) read_register (7));
+ printf_filtered ("R8-R15 %04lx %04lx %04lx %04lx %04lx %04lx %04lx %04lx\n",
+ (long) read_register (8),
+ (long) read_register (9),
+ (long) read_register (10),
+ (long) read_register (11),
+ (long) read_register (12),
+ (long) read_register (13),
+ (long) read_register (14),
+ (long) read_register (15));
+ for (a = 0; a < NR_IMAP_REGS; a++)
+ {
+ if (a > 0)
+ printf_filtered (" ");
+ printf_filtered ("IMAP%d %04lx", a, d10v_imap_register (a));
+ }
+ if (NR_DMAP_REGS == 1)
+ printf_filtered (" DMAP %04lx\n", d10v_dmap_register (2));
+ else
+ {
+ for (a = 0; a < NR_DMAP_REGS; a++)
+ {
+ printf_filtered (" DMAP%d %04lx", a, d10v_dmap_register (a));
+ }
+ printf_filtered ("\n");
+ }
+ printf_filtered ("A0-A%d", NR_A_REGS - 1);
+ for (a = A0_REGNUM; a < A0_REGNUM + NR_A_REGS; a++)
{
char num[MAX_REGISTER_RAW_SIZE];
int i;
void *data;
};
-static struct stack_item *push_stack_item PARAMS ((struct stack_item * prev, void *contents, int len));
+static struct stack_item *push_stack_item (struct stack_item *prev,
+ void *contents, int len);
static struct stack_item *
push_stack_item (prev, contents, len)
struct stack_item *prev;
return si;
}
-static struct stack_item *pop_stack_item PARAMS ((struct stack_item * si));
+static struct stack_item *pop_stack_item (struct stack_item *si);
static struct stack_item *
pop_stack_item (si)
struct stack_item *si;
}
}
+/* Translate a GDB virtual ADDR/LEN into a format the remote target
+ understands. Returns number of bytes that can be transfered
+ starting at TARG_ADDR. Return ZERO if no bytes can be transfered
+ (segmentation fault). Since the simulator knows all about how the
+ VM system works, we just call that to do the translation. */
+
+static void
+remote_d10v_translate_xfer_address (CORE_ADDR memaddr, int nr_bytes,
+ CORE_ADDR *targ_addr, int *targ_len)
+{
+ long out_addr;
+ long out_len;
+ out_len = sim_d10v_translate_addr (memaddr, nr_bytes,
+ &out_addr,
+ d10v_dmap_register,
+ d10v_imap_register);
+ *targ_addr = out_addr;
+ *targ_len = out_len;
+}
+
+
/* The following code implements access to, and display of, the D10V's
instruction trace buffer. The buffer consists of 64K or more
4-byte words of data, of which each words includes an 8-bit count,
#define TRACE_BUFFER_BASE (0xf40000)
-static void trace_command PARAMS ((char *, int));
+static void trace_command (char *, int);
-static void untrace_command PARAMS ((char *, int));
+static void untrace_command (char *, int);
-static void trace_info PARAMS ((char *, int));
+static void trace_info (char *, int);
-static void tdisassemble_command PARAMS ((char *, int));
+static void tdisassemble_command (char *, int);
-static void display_trace PARAMS ((int, int));
+static void display_trace (int, int);
/* True when instruction traces are being collected. */
for (i = 0; i < trace_data.size; ++i)
{
- printf_filtered ("%d: %d instruction%s at 0x%x\n",
- i, trace_data.counts[i],
+ printf_filtered ("%d: %d instruction%s at 0x%s\n",
+ i,
+ trace_data.counts[i],
(trace_data.counts[i] == 1 ? "" : "s"),
- trace_data.addrs[i]);
+ paddr_nz (trace_data.addrs[i]));
}
}
else
static int
print_insn (memaddr, stream)
CORE_ADDR memaddr;
- GDB_FILE *stream;
+ struct ui_file *stream;
{
/* If there's no disassembler, something is very wrong. */
if (tm_print_insn == NULL)
- abort ();
+ internal_error ("print_insn: no disassembler");
if (TARGET_BYTE_ORDER == BIG_ENDIAN)
tm_print_insn_info.endian = BFD_ENDIAN_BIG;
high = low;
}
- printf_filtered ("Dump of trace from %d to %d:\n", low, high);
+ printf_filtered ("Dump of trace from %s to %s:\n", paddr_u (low), paddr_u (high));
display_trace (low, high);
static gdbarch_init_ftype d10v_gdbarch_init;
+
static struct gdbarch *
d10v_gdbarch_init (info, arches)
struct gdbarch_info info;
static LONGEST d10v_call_dummy_words[] =
{0};
struct gdbarch *gdbarch;
- int d10v_num_regs = 37;
+ int d10v_num_regs;
+ struct gdbarch_tdep *tdep;
+ gdbarch_register_name_ftype *d10v_register_name;
- /* there is only one d10v architecture */
+ /* Find a candidate among the list of pre-declared architectures. */
+ arches = gdbarch_list_lookup_by_info (arches, &info);
if (arches != NULL)
return arches->gdbarch;
- gdbarch = gdbarch_alloc (&info, NULL);
+
+ /* None found, create a new architecture from the information
+ provided. */
+ 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;
+ tdep->a0_regnum = TS2_A0_REGNUM;
+ tdep->nr_dmap_regs = TS2_NR_DMAP_REGS;
+ tdep->register_sim_regno = d10v_ts2_register_sim_regno;
+ 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;
+ tdep->a0_regnum = TS3_A0_REGNUM;
+ tdep->nr_dmap_regs = TS3_NR_DMAP_REGS;
+ tdep->register_sim_regno = d10v_ts3_register_sim_regno;
+ 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_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);
+ /* 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_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+ switch (info.byte_order)
+ {
+ case BIG_ENDIAN:
+ 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:
+ 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 ("d10v_gdbarch_init: bad byte order for float format");
+ }
set_gdbarch_use_generic_dummy_frames (gdbarch, 1);
set_gdbarch_call_dummy_length (gdbarch, 0);
set_gdbarch_frame_locals_address (gdbarch, d10v_frame_locals_address);
set_gdbarch_saved_pc_after_call (gdbarch, d10v_saved_pc_after_call);
set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
+ set_gdbarch_stack_align (gdbarch, d10v_stack_align);
return gdbarch;
}
-extern void (*target_resume_hook) PARAMS ((void));
-extern void (*target_wait_loop_hook) PARAMS ((void));
+extern void (*target_resume_hook) (void);
+extern void (*target_wait_loop_hook) (void);
void
_initialize_d10v_tdep ()
add_com ("regs", class_vars, show_regs, "Print all registers");
- add_com ("trace", class_support, trace_command,
+ add_com ("itrace", class_support, trace_command,
"Enable tracing of instruction execution.");
- add_com ("untrace", class_support, untrace_command,
+ add_com ("iuntrace", class_support, untrace_command,
"Disable tracing of instruction execution.");
- add_com ("tdisassemble", class_vars, tdisassemble_command,
+ 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 ("trace", trace_info,
+ add_info ("itrace", trace_info,
"Display info about the trace data buffer.");
- add_show_from_set (add_set_cmd ("tracedisplay", no_class,
+ add_show_from_set (add_set_cmd ("itracedisplay", no_class,
var_integer, (char *) &trace_display,
"Set automatic display of trace.\n", &setlist),
&showlist);
- add_show_from_set (add_set_cmd ("tracesource", no_class,
+ add_show_from_set (add_set_cmd ("itracesource", no_class,
var_integer, (char *) &default_trace_show_source,
"Set display of source code with trace.\n", &setlist),
&showlist);
projects / deliverable / binutils-gdb.git / blobdiff