/* Simulator tracing/debugging support.
Copyright (C) 1997-2019 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "sim-main.h"
#include "sim-io.h"
#include "sim-options.h"
#include "sim-fpu.h"
#include "bfd.h"
#include "libiberty.h"
#include "dis-asm.h"
#include "sim-assert.h"
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifndef SIZE_PHASE
#define SIZE_PHASE 8
#endif
#ifndef SIZE_LOCATION
#define SIZE_LOCATION 20
#endif
#ifndef SIZE_PC
#define SIZE_PC 6
#endif
#ifndef SIZE_LINE_NUMBER
#define SIZE_LINE_NUMBER 4
#endif
static MODULE_INIT_FN trace_init;
static MODULE_UNINSTALL_FN trace_uninstall;
static DECLARE_OPTION_HANDLER (trace_option_handler);
enum {
OPTION_TRACE_INSN = OPTION_START,
OPTION_TRACE_DISASM,
OPTION_TRACE_DECODE,
OPTION_TRACE_EXTRACT,
OPTION_TRACE_LINENUM,
OPTION_TRACE_MEMORY,
OPTION_TRACE_MODEL,
OPTION_TRACE_ALU,
OPTION_TRACE_CORE,
OPTION_TRACE_EVENTS,
OPTION_TRACE_FPU,
OPTION_TRACE_BRANCH,
OPTION_TRACE_SEMANTICS,
OPTION_TRACE_RANGE,
OPTION_TRACE_FUNCTION,
OPTION_TRACE_DEBUG,
OPTION_TRACE_FILE,
OPTION_TRACE_VPU,
OPTION_TRACE_SYSCALL,
OPTION_TRACE_REGISTER
};
static const OPTION trace_options[] =
{
/* This table is organized to group related instructions together. */
{ {"trace", optional_argument, NULL, 't'},
't', "on|off", "Trace useful things",
trace_option_handler, NULL },
{ {"trace-insn", optional_argument, NULL, OPTION_TRACE_INSN},
'\0', "on|off", "Perform instruction tracing",
trace_option_handler, NULL },
{ {"trace-disasm", optional_argument, NULL, OPTION_TRACE_DISASM},
'\0', "on|off", "Disassemble instructions (slower, but more accurate)",
trace_option_handler, NULL },
{ {"trace-decode", optional_argument, NULL, OPTION_TRACE_DECODE},
'\0', "on|off", "Trace instruction decoding",
trace_option_handler, NULL },
{ {"trace-extract", optional_argument, NULL, OPTION_TRACE_EXTRACT},
'\0', "on|off", "Trace instruction extraction",
trace_option_handler, NULL },
{ {"trace-linenum", optional_argument, NULL, OPTION_TRACE_LINENUM},
'\0', "on|off", "Perform line number tracing (implies --trace-insn)",
trace_option_handler, NULL },
{ {"trace-memory", optional_argument, NULL, OPTION_TRACE_MEMORY},
'\0', "on|off", "Trace memory operations",
trace_option_handler, NULL },
{ {"trace-alu", optional_argument, NULL, OPTION_TRACE_ALU},
'\0', "on|off", "Trace ALU (Arithmetic Logic Unit) operations",
trace_option_handler, NULL },
{ {"trace-fpu", optional_argument, NULL, OPTION_TRACE_FPU},
'\0', "on|off", "Trace FPU (Floating Point Unit) operations",
trace_option_handler, NULL },
{ {"trace-vpu", optional_argument, NULL, OPTION_TRACE_VPU},
'\0', "on|off", "Trace VPU (Vector Processing Unit) operations",
trace_option_handler, NULL },
{ {"trace-branch", optional_argument, NULL, OPTION_TRACE_BRANCH},
'\0', "on|off", "Trace branching",
trace_option_handler, NULL },
{ {"trace-semantics", optional_argument, NULL, OPTION_TRACE_SEMANTICS},
'\0', "on|off", "Perform ALU, FPU, VPU, MEMORY, and BRANCH tracing",
trace_option_handler, NULL },
{ {"trace-model", optional_argument, NULL, OPTION_TRACE_MODEL},
'\0', "on|off", "Include model performance data",
trace_option_handler, NULL },
{ {"trace-core", optional_argument, NULL, OPTION_TRACE_CORE},
'\0', "on|off", "Trace core operations",
trace_option_handler, NULL },
{ {"trace-events", optional_argument, NULL, OPTION_TRACE_EVENTS},
'\0', "on|off", "Trace events",
trace_option_handler, NULL },
{ {"trace-syscall", optional_argument, NULL, OPTION_TRACE_SYSCALL},
'\0', "on|off", "Trace system calls",
trace_option_handler, NULL },
{ {"trace-register", optional_argument, NULL, OPTION_TRACE_REGISTER},
'\0', "on|off", "Trace cpu register accesses",
trace_option_handler, NULL },
#ifdef SIM_HAVE_ADDR_RANGE
{ {"trace-range", required_argument, NULL, OPTION_TRACE_RANGE},
'\0', "START,END", "Specify range of addresses for instruction tracing",
trace_option_handler, NULL },
#if 0 /*wip*/
{ {"trace-function", required_argument, NULL, OPTION_TRACE_FUNCTION},
'\0', "FUNCTION", "Specify function to trace",
trace_option_handler, NULL },
#endif
#endif
{ {"trace-debug", optional_argument, NULL, OPTION_TRACE_DEBUG},
'\0', "on|off", "Add information useful for debugging the simulator to the tracing output",
trace_option_handler, NULL },
{ {"trace-file", required_argument, NULL, OPTION_TRACE_FILE},
'\0', "FILE NAME", "Specify tracing output file",
trace_option_handler, NULL },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL }
};
/* Set/reset the trace options indicated in MASK. */
static SIM_RC
set_trace_option_mask (SIM_DESC sd, const char *name, int mask, const char *arg)
{
int trace_nr;
int cpu_nr;
int trace_val = 1;
if (arg != NULL)
{
if (strcmp (arg, "yes") == 0
|| strcmp (arg, "on") == 0
|| strcmp (arg, "1") == 0)
trace_val = 1;
else if (strcmp (arg, "no") == 0
|| strcmp (arg, "off") == 0
|| strcmp (arg, "0") == 0)
trace_val = 0;
else
{
sim_io_eprintf (sd, "Argument `%s' for `--trace%s' invalid, one of `on', `off', `yes', `no' expected\n", arg, name);
return SIM_RC_FAIL;
}
}
/* Update applicable trace bits. */
for (trace_nr = 0; trace_nr < MAX_TRACE_VALUES; ++trace_nr)
{
if ((mask & (1 << trace_nr)) == 0)
continue;
/* Set non-cpu specific values. */
STATE_TRACE_FLAGS (sd)[trace_nr] = trace_val;
/* Set cpu values. */
for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; cpu_nr++)
{
CPU_TRACE_FLAGS (STATE_CPU (sd, cpu_nr))[trace_nr] = trace_val;
}
}
/* Re-compute the cpu trace summary. */
if (trace_val)
{
for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; cpu_nr++)
CPU_TRACE_DATA (STATE_CPU (sd, cpu_nr))->trace_any_p = 1;
}
else
{
for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; cpu_nr++)
{
CPU_TRACE_DATA (STATE_CPU (sd, cpu_nr))->trace_any_p = 0;
for (trace_nr = 0; trace_nr < MAX_TRACE_VALUES; ++trace_nr)
{
if (CPU_TRACE_FLAGS (STATE_CPU (sd, cpu_nr))[trace_nr])
{
CPU_TRACE_DATA (STATE_CPU (sd, cpu_nr))->trace_any_p = 1;
break;
}
}
}
}
return SIM_RC_OK;
}
/* Set one trace option based on its IDX value. */
static SIM_RC
set_trace_option (SIM_DESC sd, const char *name, int idx, const char *arg)
{
return set_trace_option_mask (sd, name, 1 << idx, arg);
}
static SIM_RC
trace_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt,
char *arg, int is_command)
{
int n;
switch (opt)
{
case 't' :
if (!WITH_TRACE_ANY_P)
sim_io_eprintf (sd, "Tracing not compiled in, `-t' ignored\n");
else
return set_trace_option_mask (sd, "trace", TRACE_USEFUL_MASK, arg);
break;
case OPTION_TRACE_INSN :
if (WITH_TRACE_INSN_P)
return set_trace_option (sd, "-insn", TRACE_INSN_IDX, arg);
else
sim_io_eprintf (sd, "Instruction tracing not compiled in, `--trace-insn' ignored\n");
break;
case OPTION_TRACE_DISASM :
if (WITH_TRACE_DISASM_P)
return set_trace_option (sd, "-disasm", TRACE_DISASM_IDX, arg);
else
sim_io_eprintf (sd, "Instruction tracing not compiled in, `--trace-disasm' ignored\n");
break;
case OPTION_TRACE_DECODE :
if (WITH_TRACE_DECODE_P)
return set_trace_option (sd, "-decode", TRACE_DECODE_IDX, arg);
else
sim_io_eprintf (sd, "Decode tracing not compiled in, `--trace-decode' ignored\n");
break;
case OPTION_TRACE_EXTRACT :
if (WITH_TRACE_EXTRACT_P)
return set_trace_option (sd, "-extract", TRACE_EXTRACT_IDX, arg);
else
sim_io_eprintf (sd, "Extract tracing not compiled in, `--trace-extract' ignored\n");
break;
case OPTION_TRACE_LINENUM :
if (WITH_TRACE_LINENUM_P && WITH_TRACE_INSN_P)
{
if (set_trace_option (sd, "-linenum", TRACE_LINENUM_IDX, arg) != SIM_RC_OK
|| set_trace_option (sd, "-linenum", TRACE_INSN_IDX, arg) != SIM_RC_OK)
return SIM_RC_FAIL;
}
else
sim_io_eprintf (sd, "Line number or instruction tracing not compiled in, `--trace-linenum' ignored\n");
break;
case OPTION_TRACE_MEMORY :
if (WITH_TRACE_MEMORY_P)
return set_trace_option (sd, "-memory", TRACE_MEMORY_IDX, arg);
else
sim_io_eprintf (sd, "Memory tracing not compiled in, `--trace-memory' ignored\n");
break;
case OPTION_TRACE_MODEL :
if (WITH_TRACE_MODEL_P)
return set_trace_option (sd, "-model", TRACE_MODEL_IDX, arg);
else
sim_io_eprintf (sd, "Model tracing not compiled in, `--trace-model' ignored\n");
break;
case OPTION_TRACE_ALU :
if (WITH_TRACE_ALU_P)
return set_trace_option (sd, "-alu", TRACE_ALU_IDX, arg);
else
sim_io_eprintf (sd, "ALU tracing not compiled in, `--trace-alu' ignored\n");
break;
case OPTION_TRACE_CORE :
if (WITH_TRACE_CORE_P)
return set_trace_option (sd, "-core", TRACE_CORE_IDX, arg);
else
sim_io_eprintf (sd, "CORE tracing not compiled in, `--trace-core' ignored\n");
break;
case OPTION_TRACE_EVENTS :
if (WITH_TRACE_EVENTS_P)
return set_trace_option (sd, "-events", TRACE_EVENTS_IDX, arg);
else
sim_io_eprintf (sd, "EVENTS tracing not compiled in, `--trace-events' ignored\n");
break;
case OPTION_TRACE_FPU :
if (WITH_TRACE_FPU_P)
return set_trace_option (sd, "-fpu", TRACE_FPU_IDX, arg);
else
sim_io_eprintf (sd, "FPU tracing not compiled in, `--trace-fpu' ignored\n");
break;
case OPTION_TRACE_VPU :
if (WITH_TRACE_VPU_P)
return set_trace_option (sd, "-vpu", TRACE_VPU_IDX, arg);
else
sim_io_eprintf (sd, "VPU tracing not compiled in, `--trace-vpu' ignored\n");
break;
case OPTION_TRACE_BRANCH :
if (WITH_TRACE_BRANCH_P)
return set_trace_option (sd, "-branch", TRACE_BRANCH_IDX, arg);
else
sim_io_eprintf (sd, "Branch tracing not compiled in, `--trace-branch' ignored\n");
break;
case OPTION_TRACE_SYSCALL :
if (WITH_TRACE_SYSCALL_P)
return set_trace_option (sd, "-syscall", TRACE_SYSCALL_IDX, arg);
else
sim_io_eprintf (sd, "System call tracing not compiled in, `--trace-syscall' ignored\n");
break;
case OPTION_TRACE_REGISTER :
if (WITH_TRACE_REGISTER_P)
return set_trace_option (sd, "-register", TRACE_REGISTER_IDX, arg);
else
sim_io_eprintf (sd, "Register tracing not compiled in, `--trace-register' ignored\n");
break;
case OPTION_TRACE_SEMANTICS :
if (WITH_TRACE_ALU_P
&& WITH_TRACE_FPU_P
&& WITH_TRACE_MEMORY_P
&& WITH_TRACE_BRANCH_P)
{
if (set_trace_option (sd, "-semantics", TRACE_ALU_IDX, arg) != SIM_RC_OK
|| set_trace_option (sd, "-semantics", TRACE_FPU_IDX, arg) != SIM_RC_OK
|| set_trace_option (sd, "-semantics", TRACE_VPU_IDX, arg) != SIM_RC_OK
|| set_trace_option (sd, "-semantics", TRACE_MEMORY_IDX, arg) != SIM_RC_OK
|| set_trace_option (sd, "-semantics", TRACE_BRANCH_IDX, arg) != SIM_RC_OK)
return SIM_RC_FAIL;
}
else
sim_io_eprintf (sd, "Alu, fpu, memory, and/or branch tracing not compiled in, `--trace-semantics' ignored\n");
break;
#ifdef SIM_HAVE_ADDR_RANGE
case OPTION_TRACE_RANGE :
if (WITH_TRACE_ANY_P)
{
int cpu_nr;
char *chp = arg;
unsigned long start,end;
start = strtoul (chp, &chp, 0);
if (*chp != ',')
{
sim_io_eprintf (sd, "--trace-range missing END argument\n");
return SIM_RC_FAIL;
}
end = strtoul (chp + 1, NULL, 0);
/* FIXME: Argument validation. */
if (cpu != NULL)
sim_addr_range_add (TRACE_RANGE (CPU_PROFILE_DATA (cpu)),
start, end);
else
for (cpu_nr = 0; cpu_nr < MAX_NR_PROCESSORS; ++cpu_nr)
sim_addr_range_add (TRACE_RANGE (CPU_TRACE_DATA (STATE_CPU (sd, cpu_nr))),
start, end);
}
else
sim_io_eprintf (sd, "Tracing not compiled in, `--trace-range' ignored\n");
break;
case OPTION_TRACE_FUNCTION :
if (WITH_TRACE_ANY_P)
{
/*wip: need to compute function range given name*/
}
else
sim_io_eprintf (sd, "Tracing not compiled in, `--trace-function' ignored\n");
break;
#endif /* SIM_HAVE_ADDR_RANGE */
case OPTION_TRACE_DEBUG :
if (WITH_TRACE_DEBUG_P)
return set_trace_option (sd, "-debug", TRACE_DEBUG_IDX, arg);
else
sim_io_eprintf (sd, "Tracing debug support not compiled in, `--trace-debug' ignored\n");
break;
case OPTION_TRACE_FILE :
if (!WITH_TRACE_ANY_P)
sim_io_eprintf (sd, "Tracing not compiled in, `--trace-file' ignored\n");
else
{
FILE *f = fopen (arg, "w");
if (f == NULL)
{
sim_io_eprintf (sd, "Unable to open trace output file `%s'\n", arg);
return SIM_RC_FAIL;
}
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
TRACE_FILE (CPU_TRACE_DATA (STATE_CPU (sd, n))) = f;
TRACE_FILE (STATE_TRACE_DATA (sd)) = f;
}
break;
}
return SIM_RC_OK;
}
/* Install tracing support. */
SIM_RC
trace_install (SIM_DESC sd)
{
int i;
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
sim_add_option_table (sd, NULL, trace_options);
memset (STATE_TRACE_DATA (sd), 0, sizeof (* STATE_TRACE_DATA (sd)));
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
memset (CPU_TRACE_DATA (STATE_CPU (sd, i)), 0,
sizeof (* CPU_TRACE_DATA (STATE_CPU (sd, i))));
sim_module_add_init_fn (sd, trace_init);
sim_module_add_uninstall_fn (sd, trace_uninstall);
return SIM_RC_OK;
}
static SIM_RC
trace_init (SIM_DESC sd)
{
#ifdef SIM_HAVE_ADDR_RANGE
/* Check if a range has been specified without specifying what to
collect. */
{
int i;
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
{
sim_cpu *cpu = STATE_CPU (sd, i);
if (ADDR_RANGE_RANGES (TRACE_RANGE (CPU_TRACE_DATA (cpu)))
&& ! TRACE_INSN_P (cpu))
{
sim_io_eprintf_cpu (cpu, "Tracing address range specified without --trace-insn.\n");
sim_io_eprintf_cpu (cpu, "Address range ignored.\n");
sim_addr_range_delete (TRACE_RANGE (CPU_TRACE_DATA (cpu)),
0, ~ (address_word) 0);
}
}
}
#endif
return SIM_RC_OK;
}
static void
trace_uninstall (SIM_DESC sd)
{
int i,j;
FILE *sfile = TRACE_FILE (STATE_TRACE_DATA (sd));
if (sfile != NULL)
fclose (sfile);
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
{
FILE *cfile = TRACE_FILE (CPU_TRACE_DATA (STATE_CPU (sd, i)));
if (cfile != NULL && cfile != sfile)
{
/* If output from different cpus is going to the same file,
avoid closing the file twice. */
for (j = 0; j < i; ++j)
if (TRACE_FILE (CPU_TRACE_DATA (STATE_CPU (sd, j))) == cfile)
break;
if (i == j)
fclose (cfile);
}
}
if (STATE_PROG_SYMS (sd))
free (STATE_PROG_SYMS (sd));
}
/* compute the nr of trace data units consumed by data */
static int
save_data_size (TRACE_DATA *data,
long size)
{
return ((size + sizeof (TRACE_INPUT_DATA (data) [0]) - 1)
/ sizeof (TRACE_INPUT_DATA (data) [0]));
}
/* Archive DATA into the trace buffer */
void
save_data (SIM_DESC sd,
TRACE_DATA *data,
data_fmt fmt,
long size,
const void *buf)
{
int i = TRACE_INPUT_IDX (data);
if (i == sizeof (TRACE_INPUT_FMT (data)))
sim_io_error (sd, "trace buffer overflow");
TRACE_INPUT_FMT (data) [i] = fmt;
TRACE_INPUT_SIZE (data) [i] = size;
memcpy (&TRACE_INPUT_DATA (data) [i], buf, size);
i += save_data_size (data, size);
TRACE_INPUT_IDX (data) = i;
}
static void
print_data (SIM_DESC sd,
sim_cpu *cpu,
data_fmt fmt,
long size,
void *data)
{
switch (fmt)
{
case trace_fmt_instruction_incomplete:
trace_printf (sd, cpu, " (instruction incomplete)");
break;
case trace_fmt_word:
case trace_fmt_addr:
{
switch (size)
{
case sizeof (unsigned32):
trace_printf (sd, cpu, " 0x%08lx", (long) * (unsigned32*) data);
break;
case sizeof (unsigned64):
trace_printf (sd, cpu, " 0x%08lx%08lx",
(long) ((* (unsigned64*) data) >> 32),
(long) * (unsigned64*) data);
break;
default:
abort ();
}
break;
}
case trace_fmt_bool:
{
SIM_ASSERT (size == sizeof (int));
trace_printf (sd, cpu, " %-8s",
(* (int*) data) ? "true" : "false");
break;
}
case trace_fmt_fp:
{
sim_fpu fp;
switch (size)
{
/* FIXME: Assumes sizeof float == 4; sizeof double == 8 */
case 4:
sim_fpu_32to (&fp, *(unsigned32*)data);
break;
case 8:
sim_fpu_64to (&fp, *(unsigned64*)data);
break;
default:
abort ();
}
trace_printf (sd, cpu, " %8g", sim_fpu_2d (&fp));
switch (size)
{
case 4:
trace_printf (sd, cpu, " (0x%08lx)",
(long) *(unsigned32*)data);
break;
case 8:
trace_printf (sd, cpu, " (0x%08lx%08lx)",
(long) (*(unsigned64*)data >> 32),
(long) (*(unsigned64*)data));
break;
default:
abort ();
}
break;
}
case trace_fmt_fpu:
/* FIXME: At present sim_fpu data is stored as a double */
trace_printf (sd, cpu, " %8g", * (double*) data);
break;
case trace_fmt_string:
trace_printf (sd, cpu, " %-8s", (char*) data);
break;
default:
abort ();
}
}
static const char *
trace_idx_to_str (int trace_idx)
{
static char num[8];
switch (trace_idx)
{
case TRACE_ALU_IDX: return "alu: ";
case TRACE_INSN_IDX: return "insn: ";
case TRACE_DISASM_IDX: return "disasm: ";
case TRACE_DECODE_IDX: return "decode: ";
case TRACE_EXTRACT_IDX: return "extract: ";
case TRACE_MEMORY_IDX: return "memory: ";
case TRACE_CORE_IDX: return "core: ";
case TRACE_EVENTS_IDX: return "events: ";
case TRACE_FPU_IDX: return "fpu: ";
case TRACE_BRANCH_IDX: return "branch: ";
case TRACE_SYSCALL_IDX: return "syscall: ";
case TRACE_REGISTER_IDX: return "reg: ";
case TRACE_VPU_IDX: return "vpu: ";
default:
sprintf (num, "?%d?", trace_idx);
return num;
}
}
static void
trace_results (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
int last_input)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int nr_out;
int i;
/* cross check trace_idx against TRACE_IDX (data)? */
/* prefix */
trace_printf (sd, cpu, "%s %s",
trace_idx_to_str (TRACE_IDX (data)),
TRACE_PREFIX (data));
TRACE_IDX (data) = 0;
for (i = 0, nr_out = 0;
i < TRACE_INPUT_IDX (data);
i += save_data_size (data, TRACE_INPUT_SIZE (data) [i]), nr_out++)
{
if (i == last_input)
{
int pad = (strlen (" 0x") + sizeof (unsigned_word) * 2);
int padding = pad * (3 - nr_out);
if (padding < 0)
padding = 0;
padding += strlen (" ::");
trace_printf (sd, cpu, "%*s", padding, " ::");
}
print_data (sd, cpu,
TRACE_INPUT_FMT (data) [i],
TRACE_INPUT_SIZE (data) [i],
&TRACE_INPUT_DATA (data) [i]);
}
trace_printf (sd, cpu, "\n");
}
int
trace_load_symbols (SIM_DESC sd)
{
bfd *abfd;
asymbol **asymbols;
long symsize;
long symbol_count;
/* Already loaded, so nothing to do. */
if (STATE_PROG_SYMS (sd))
return 1;
abfd = STATE_PROG_BFD (sd);
if (abfd == NULL)
return 0;
symsize = bfd_get_symtab_upper_bound (abfd);
if (symsize < 0)
return 0;
asymbols = xmalloc (symsize);
symbol_count = bfd_canonicalize_symtab (abfd, asymbols);
if (symbol_count < 0)
{
free (asymbols);
return 0;
}
STATE_PROG_SYMS (sd) = asymbols;
STATE_PROG_SYMS_COUNT (sd) = symbol_count;
return 1;
}
bfd_vma
trace_sym_value (SIM_DESC sd, const char *name)
{
asymbol **asymbols;
long i;
if (!trace_load_symbols (sd))
return -1;
asymbols = STATE_PROG_SYMS (sd);
for (i = 0; i < STATE_PROG_SYMS_COUNT (sd); ++i)
if (strcmp (asymbols[i]->name, name) == 0)
return bfd_asymbol_value (asymbols[i]);
return -1;
}
void
trace_prefix (SIM_DESC sd,
sim_cpu *cpu,
sim_cia cia,
address_word pc,
int line_p,
const char *filename,
int linenum,
const char *fmt,
...)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
va_list ap;
char *prefix = TRACE_PREFIX (data);
char *chp;
/* FIXME: The TRACE_PREFIX_WIDTH should be determined at build time using
known information about the disassembled instructions. */
#ifndef TRACE_PREFIX_WIDTH
#define TRACE_PREFIX_WIDTH 48
#endif
int width = TRACE_PREFIX_WIDTH;
/* if the previous trace data wasn't flushed, flush it now with a
note indicating that the trace was incomplete. */
if (TRACE_IDX (data) != 0)
{
int last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_instruction_incomplete, 1, "");
trace_results (sd, cpu, TRACE_IDX (data), last_input);
}
TRACE_IDX (data) = 0;
TRACE_INPUT_IDX (data) = 0;
/* Create the text prefix for this new instruction: */
if (!line_p)
{
if (filename)
{
sprintf (prefix, "%s:%-*d 0x%.*lx ",
filename,
SIZE_LINE_NUMBER, linenum,
SIZE_PC, (long) pc);
}
else
{
sprintf (prefix, "0x%.*lx ",
SIZE_PC, (long) pc);
/* Shrink the width by the amount that we didn't print. */
width -= SIZE_LINE_NUMBER + SIZE_PC + 8;
}
chp = strchr (prefix, '\0');
va_start (ap, fmt);
vsprintf (chp, fmt, ap);
va_end (ap);
}
else
{
char buf[256];
buf[0] = 0;
if (STATE_TEXT_SECTION (sd)
&& pc >= STATE_TEXT_START (sd)
&& pc < STATE_TEXT_END (sd))
{
const char *pc_filename = (const char *)0;
const char *pc_function = (const char *)0;
unsigned int pc_linenum = 0;
bfd *abfd;
asymbol **asymbols;
if (!trace_load_symbols (sd))
sim_engine_abort (sd, cpu, cia, "could not load symbols");
abfd = STATE_PROG_BFD (sd);
asymbols = STATE_PROG_SYMS (sd);
if (bfd_find_nearest_line (abfd, STATE_TEXT_SECTION (sd), asymbols,
pc - STATE_TEXT_START (sd),
&pc_filename, &pc_function, &pc_linenum))
{
char *p = buf;
if (pc_linenum)
{
sprintf (p, "#%-*d ", SIZE_LINE_NUMBER, pc_linenum);
p += strlen (p);
}
else
{
sprintf (p, "%-*s ", SIZE_LINE_NUMBER+1, "---");
p += SIZE_LINE_NUMBER+2;
}
if (pc_function)
{
sprintf (p, "%s ", pc_function);
p += strlen (p);
}
else if (pc_filename)
{
char *q = (char *) strrchr (pc_filename, '/');
sprintf (p, "%s ", (q) ? q+1 : pc_filename);
p += strlen (p);
}
if (*p == ' ')
*p = '\0';
}
}
sprintf (prefix, "0x%.*x %-*.*s ",
SIZE_PC, (unsigned) pc,
SIZE_LOCATION, SIZE_LOCATION, buf);
chp = strchr (prefix, '\0');
va_start (ap, fmt);
vsprintf (chp, fmt, ap);
va_end (ap);
}
/* Pad it out to TRACE_PREFIX_WIDTH. */
chp = strchr (prefix, '\0');
if (chp - prefix < width)
{
memset (chp, ' ', width - (chp - prefix));
chp = &prefix [width];
*chp = '\0';
}
strcpy (chp, " -");
/* check that we've not over flowed the prefix buffer */
if (strlen (prefix) >= sizeof (TRACE_PREFIX (data)))
abort ();
}
void
trace_generic (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
const char *fmt,
...)
{
va_list ap;
trace_printf (sd, cpu, "%s %s",
trace_idx_to_str (trace_idx),
TRACE_PREFIX (CPU_TRACE_DATA (cpu)));
va_start (ap, fmt);
trace_vprintf (sd, cpu, fmt, ap);
va_end (ap);
trace_printf (sd, cpu, "\n");
}
static int
dis_read (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
struct disassemble_info *dinfo)
{
SIM_CPU *cpu = dinfo->application_data;
sim_core_read_buffer (CPU_STATE (cpu), cpu, NULL_CIA, myaddr, memaddr, length);
return 0;
}
static int
dis_printf (SIM_CPU *cpu, const char *fmt, ...)
{
SIM_DESC sd = CPU_STATE (cpu);
va_list ap;
va_start (ap, fmt);
trace_vprintf (sd, cpu, fmt, ap);
va_end (ap);
return 0;
}
void
trace_disasm (SIM_DESC sd, sim_cpu *cpu, address_word addr)
{
struct bfd *bfd = STATE_PROG_BFD (sd);
TRACE_DATA *trace_data = CPU_TRACE_DATA (cpu);
disassemble_info *info = &trace_data->dis_info;
/* See if we need to set up the disassembly func. */
if (trace_data->dis_bfd != bfd)
{
trace_data->dis_bfd = bfd;
trace_data->disassembler
= disassembler (bfd_get_arch (trace_data->dis_bfd),
bfd_big_endian (trace_data->dis_bfd),
bfd_get_mach (trace_data->dis_bfd),
trace_data->dis_bfd);
INIT_DISASSEMBLE_INFO (*info, cpu, dis_printf);
info->read_memory_func = dis_read;
info->arch = bfd_get_arch (bfd);
info->mach = bfd_get_mach (bfd);
disassemble_init_for_target (info);
}
info->application_data = cpu;
trace_printf (sd, cpu, "%s %s",
trace_idx_to_str (TRACE_DISASM_IDX),
TRACE_PREFIX (trace_data));
trace_data->disassembler (addr, info);
trace_printf (sd, cpu, "\n");
}
void
trace_input0 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
}
void
trace_input_word1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word d0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &d0);
}
void
trace_input_word2 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word d0,
unsigned_word d1)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &d0);
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &d1);
}
void
trace_input_word3 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word d0,
unsigned_word d1,
unsigned_word d2)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &d0);
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &d1);
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &d2);
}
void
trace_input_word4 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word d0,
unsigned_word d1,
unsigned_word d2,
unsigned_word d3)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_word, sizeof (d0), &d0);
save_data (sd, data, trace_fmt_word, sizeof (d1), &d1);
save_data (sd, data, trace_fmt_word, sizeof (d2), &d2);
save_data (sd, data, trace_fmt_word, sizeof (d3), &d3);
}
void
trace_input_bool1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
int d0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_bool, sizeof (d0), &d0);
}
void
trace_input_addr1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
address_word d0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_addr, sizeof (d0), &d0);
}
void
trace_input_fp1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
fp_word f0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f0);
}
void
trace_input_fp2 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
fp_word f0,
fp_word f1)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f0);
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f1);
}
void
trace_input_fp3 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
fp_word f0,
fp_word f1,
fp_word f2)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f0);
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f1);
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f2);
}
void
trace_input_fpu1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
sim_fpu *f0)
{
double d;
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
d = sim_fpu_2d (f0);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
}
void
trace_input_fpu2 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
sim_fpu *f0,
sim_fpu *f1)
{
double d;
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
d = sim_fpu_2d (f0);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
d = sim_fpu_2d (f1);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
}
void
trace_input_fpu3 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
sim_fpu *f0,
sim_fpu *f1,
sim_fpu *f2)
{
double d;
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
TRACE_IDX (data) = trace_idx;
d = sim_fpu_2d (f0);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
d = sim_fpu_2d (f1);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
d = sim_fpu_2d (f2);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
}
void
trace_result_word1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word r0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &r0);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result0 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_word2 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word r0,
unsigned_word r1)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_word, sizeof (r0), &r0);
save_data (sd, data, trace_fmt_word, sizeof (r1), &r1);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_word4 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word r0,
unsigned_word r1,
unsigned_word r2,
unsigned_word r3)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_word, sizeof (r0), &r0);
save_data (sd, data, trace_fmt_word, sizeof (r1), &r1);
save_data (sd, data, trace_fmt_word, sizeof (r2), &r2);
save_data (sd, data, trace_fmt_word, sizeof (r3), &r3);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_bool1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
int r0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_bool, sizeof (r0), &r0);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_addr1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
address_word r0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_addr, sizeof (r0), &r0);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_fp1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
fp_word f0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_fp, sizeof (fp_word), &f0);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_fp2 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
fp_word f0,
fp_word f1)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_fp, sizeof (f0), &f0);
save_data (sd, data, trace_fmt_fp, sizeof (f1), &f1);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_fpu1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
sim_fpu *f0)
{
double d;
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
d = sim_fpu_2d (f0);
save_data (sd, data, trace_fmt_fp, sizeof (double), &d);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_string1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
char *s0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_string, strlen (s0) + 1, s0);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_result_word1_string1 (SIM_DESC sd,
sim_cpu *cpu,
int trace_idx,
unsigned_word r0,
char *s0)
{
TRACE_DATA *data = CPU_TRACE_DATA (cpu);
int last_input;
/* Append any results to the end of the inputs */
last_input = TRACE_INPUT_IDX (data);
save_data (sd, data, trace_fmt_word, sizeof (unsigned_word), &r0);
save_data (sd, data, trace_fmt_string, strlen (s0) + 1, s0);
trace_results (sd, cpu, trace_idx, last_input);
}
void
trace_vprintf (SIM_DESC sd, sim_cpu *cpu, const char *fmt, va_list ap)
{
if (cpu != NULL)
{
if (TRACE_FILE (CPU_TRACE_DATA (cpu)) != NULL)
vfprintf (TRACE_FILE (CPU_TRACE_DATA (cpu)), fmt, ap);
else
sim_io_evprintf (sd, fmt, ap);
}
else
{
if (TRACE_FILE (STATE_TRACE_DATA (sd)) != NULL)
vfprintf (TRACE_FILE (STATE_TRACE_DATA (sd)), fmt, ap);
else
sim_io_evprintf (sd, fmt, ap);
}
}
void
trace_printf (SIM_DESC sd, sim_cpu *cpu, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
trace_vprintf (sd, cpu, fmt, ap);
va_end (ap);
}
void
sim_debug_printf (sim_cpu *cpu, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
if (CPU_DEBUG_FILE (cpu) == NULL)
(* STATE_CALLBACK (CPU_STATE (cpu))->evprintf_filtered)
(STATE_CALLBACK (CPU_STATE (cpu)), fmt, ap);
else
vfprintf (CPU_DEBUG_FILE (cpu), fmt, ap);
va_end (ap);
}