/* Simulator option handling.
Copyright (C) 1996, 1997 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 2, 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, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "sim-main.h"
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#include "libiberty.h"
#include "../libiberty/alloca-conf.h"
#include "sim-options.h"
#include "sim-io.h"
/* This is defined in sim-config.h. */
#ifndef MAX_NR_PROCESSORS
#define MAX_NR_PROCESSORS 1
#endif
/* Add a set of options to the simulator.
TABLE is an array of OPTIONS terminated by a NULL `opt.name' entry.
This is intended to be called by modules in their `install' handler. */
SIM_RC
sim_add_option_table (sd, table)
SIM_DESC sd;
const OPTION *table;
{
struct option_list *ol = ((struct option_list *)
xmalloc (sizeof (struct option_list)));
/* Note: The list is constructed in the reverse order we're called so
later calls will override earlier ones (in case that ever happens).
This is the intended behaviour. */
ol->next = STATE_OPTIONS (sd);
ol->options = table;
STATE_OPTIONS (sd) = ol;
return SIM_RC_OK;
}
/* Standard option table.
Modules may specify additional ones.
The caller of sim_parse_args may also specify additional options
by calling sim_add_option_table first. */
static DECLARE_OPTION_HANDLER (standard_option_handler);
/* FIXME: We shouldn't print in --help output options that aren't usable.
Some fine tuning will be necessary. One can either move less general
options to another table or use a HAVE_FOO macro to ifdef out unavailable
options. */
/* ??? One might want to conditionally compile out the entries that
aren't enabled. There's a distinction, however, between options a
simulator can't support and options that haven't been configured in.
Certainly options a simulator can't support shouldn't appear in the
output of --help. Whether the same thing applies to options that haven't
been configured in or not isn't something I can get worked up over.
[Note that conditionally compiling them out might simply involve moving
the option to another table.]
If you decide to conditionally compile them out as well, delete this
comment and add a comment saying that that is the rule. */
#define OPTION_DEBUG_INSN (OPTION_START + 0)
#define OPTION_DEBUG_FILE (OPTION_START + 1)
#define OPTION_TRACE_INSN (OPTION_START + 2)
#define OPTION_TRACE_DECODE (OPTION_START + 3)
#define OPTION_TRACE_EXTRACT (OPTION_START + 4)
#define OPTION_TRACE_LINENUM (OPTION_START + 5)
#define OPTION_TRACE_MEMORY (OPTION_START + 6)
#define OPTION_TRACE_MODEL (OPTION_START + 7)
#define OPTION_TRACE_ALU (OPTION_START + 8)
#define OPTION_TRACE_FILE (OPTION_START + 9)
#define OPTION_PROFILE_INSN (OPTION_START + 10)
#define OPTION_PROFILE_MEMORY (OPTION_START + 11)
#define OPTION_PROFILE_MODEL (OPTION_START + 12)
#define OPTION_PROFILE_SIMCACHE (OPTION_START + 13)
#define OPTION_PROFILE_FILE (OPTION_START + 14)
static const OPTION standard_options[] =
{
{ {"verbose", no_argument, NULL, 'v'},
'v', NULL, "Verbose output",
standard_option_handler },
#if defined (SIM_HAVE_BIENDIAN) /* ??? && WITH_TARGET_BYTE_ORDER == 0 */
{ {"endian", required_argument, NULL, 'E'},
'E', "big|little", "Set endianness",
standard_option_handler },
#endif
{ {"debug", no_argument, NULL, 'D'},
'D', NULL, "Print debugging messages",
standard_option_handler },
{ {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN},
'\0', NULL, "Print instruction debugging messages",
standard_option_handler },
{ {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE},
'\0', "FILE NAME", "Specify debugging output file",
standard_option_handler },
{ {"trace", no_argument, NULL, 't'},
't', NULL, "Perform tracing",
standard_option_handler },
{ {"trace-insn", no_argument, NULL, OPTION_TRACE_INSN},
'\0', NULL, "Perform instruction tracing",
standard_option_handler },
{ {"trace-decode", no_argument, NULL, OPTION_TRACE_DECODE},
'\0', NULL, "Perform instruction decoding tracing",
standard_option_handler },
{ {"trace-extract", no_argument, NULL, OPTION_TRACE_EXTRACT},
'\0', NULL, "Perform instruction extraction tracing",
standard_option_handler },
{ {"trace-linenum", no_argument, NULL, OPTION_TRACE_LINENUM},
'\0', NULL, "Perform line number tracing",
standard_option_handler },
{ {"trace-memory", no_argument, NULL, OPTION_TRACE_MEMORY},
'\0', NULL, "Perform memory tracing",
standard_option_handler },
{ {"trace-model", no_argument, NULL, OPTION_TRACE_MODEL},
'\0', NULL, "Perform model tracing",
standard_option_handler },
{ {"trace-alu", no_argument, NULL, OPTION_TRACE_ALU},
'\0', NULL, "Perform ALU tracing",
standard_option_handler },
{ {"trace-file", required_argument, NULL, OPTION_TRACE_FILE},
'\0', "FILE NAME", "Specify tracing output file",
standard_option_handler },
#ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
{ {"h8300h", no_argument, NULL, 'h'},
'h', NULL, "Indicate the CPU is h8/300h or h8/300s",
standard_option_handler },
#endif
#ifdef SIM_HAVE_SIMCACHE
{ {"simcache-size", required_argument, NULL, 'c'},
'c', "SIM CACHE SIZE", "Specify size of simulator execution cache",
standard_option_handler },
#endif
#ifdef SIM_HAVE_FLATMEM
{ {"mem-size", required_argument, NULL, 'm'},
'm', "MEMORY SIZE", "Specify memory size",
standard_option_handler },
#endif
#ifdef SIM_HAVE_MAX_INSNS
{ {"max-insns", required_argument, NULL, 'M'},
'M', "MAX INSNS", "Specify maximum number of instructions to execute",
standard_option_handler },
#endif
#ifdef SIM_HAVE_PROFILE
{ {"profile", no_argument, NULL, 'p'},
'p', NULL, "Perform profiling",
standard_option_handler },
{ {"profile-insn", no_argument, NULL, OPTION_PROFILE_INSN},
'\0', NULL, "Perform instruction profiling",
standard_option_handler },
{ {"profile-memory", no_argument, NULL, OPTION_PROFILE_MEMORY},
'\0', NULL, "Perform memory profiling",
standard_option_handler },
{ {"profile-model", no_argument, NULL, OPTION_PROFILE_MODEL},
'\0', NULL, "Perform model profiling",
standard_option_handler },
{ {"profile-simcache", no_argument, NULL, OPTION_PROFILE_SIMCACHE},
'\0', NULL, "Perform simulator execution cache profiling",
standard_option_handler },
{ {"profile-file", required_argument, NULL, OPTION_PROFILE_FILE},
'\0', "FILE NAME", "Specify profile output file",
standard_option_handler },
#ifdef SIM_HAVE_PROFILE_PC
{ {"profile-pc-frequency", required_argument, NULL, 'F'},
'F', "PC PROFILE FREQUENCY", "Turn on PC profiling at specified frequency",
standard_option_handler },
{ {"profile-pc-size", required_argument, NULL, 'S'},
'S', "PC PROFILE SIZE", "Specify PC profiling size",
standard_option_handler },
#endif
#endif /* SIM_HAVE_PROFILE */
{ {"help", no_argument, NULL, 'H'},
'H', NULL, "Print help information",
standard_option_handler },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
};
static SIM_RC
standard_option_handler (sd, opt, arg)
SIM_DESC sd;
int opt;
char *arg;
{
int i,n;
unsigned long ul;
switch (opt)
{
case 'v' :
STATE_VERBOSE_P (sd) = 1;
break;
#ifdef SIM_HAVE_BIENDIAN
case 'E' :
if (strcmp (arg, "big") == 0)
{
if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN)
{
sim_io_eprintf (sd, "Simulator compiled for little endian only.\n");
return SIM_RC_FAIL;
}
/* FIXME:wip: Need to set something in STATE_CONFIG. */
}
else if (strcmp (arg, "little") == 0)
{
if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN)
{
sim_io_eprintf (sd, "Simulator compiled for big endian only.\n");
return SIM_RC_FAIL;
}
/* FIXME:wip: Need to set something in STATE_CONFIG. */
}
else
{
sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg);
return SIM_RC_FAIL;
}
break;
#endif
case 'D' :
if (! WITH_DEBUG)
sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
for (i = 0; i < MAX_DEBUG_VALUES; ++i)
CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1;
}
break;
case OPTION_DEBUG_INSN :
if (! WITH_DEBUG)
sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1;
}
break;
case OPTION_DEBUG_FILE :
if (! WITH_DEBUG)
sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n");
else
{
FILE *f = fopen (arg, "w");
if (f == NULL)
{
sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg);
return SIM_RC_FAIL;
}
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f;
}
break;
case 't' :
if (! WITH_TRACE)
sim_io_eprintf (sd, "Tracing not compiled in, `-t' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
for (i = 0; i < MAX_TRACE_VALUES; ++i)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[i] = 1;
}
break;
case OPTION_TRACE_INSN :
if (! (WITH_TRACE & (1 << TRACE_INSN_IDX)))
sim_io_eprintf (sd, "Instruction tracing not compiled in, `--trace-insn' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_INSN_IDX] = 1;
}
break;
case OPTION_TRACE_DECODE :
if (! (WITH_TRACE & (1 << TRACE_DECODE_IDX)))
sim_io_eprintf (sd, "Decode tracing not compiled in, `--trace-decode' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_DECODE_IDX] = 1;
}
break;
case OPTION_TRACE_EXTRACT :
if (! (WITH_TRACE & (1 << TRACE_EXTRACT_IDX)))
sim_io_eprintf (sd, "Extract tracing not compiled in, `--trace-extract' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_EXTRACT_IDX] = 1;
}
break;
case OPTION_TRACE_LINENUM :
if (! (WITH_TRACE & (1 << TRACE_LINENUM_IDX)))
sim_io_eprintf (sd, "Line number tracing not compiled in, `--trace-linenum' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_LINENUM_IDX] = 1;
}
break;
case OPTION_TRACE_MEMORY :
if (! (WITH_TRACE & (1 << TRACE_MEMORY_IDX)))
sim_io_eprintf (sd, "Memory tracing not compiled in, `--trace-memory' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_MEMORY_IDX] = 1;
}
break;
case OPTION_TRACE_MODEL :
if (! (WITH_TRACE & (1 << TRACE_MODEL_IDX)))
sim_io_eprintf (sd, "Model tracing not compiled in, `--trace-model' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_MODEL_IDX] = 1;
}
break;
case OPTION_TRACE_ALU :
if (! (WITH_TRACE & (1 << TRACE_ALU_IDX)))
sim_io_eprintf (sd, "ALU tracing not compiled in, `--trace-alu' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_TRACE_FLAGS (STATE_CPU (sd, n))[TRACE_ALU_IDX] = 1;
}
break;
case OPTION_TRACE_FILE :
if (! WITH_TRACE)
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)
CPU_TRACE_FILE (STATE_CPU (sd, n)) = f;
}
break;
#ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */
case 'h' :
set_h8300h (1);
break;
#endif
#ifdef SIM_HAVE_SIMCACHE
case 'c':
n = strtol (arg, NULL, 0);
if (n <= 0)
{
sim_io_eprintf (sd, "Invalid simulator cache size: %d", n);
return SIM_RC_FAIL;
}
STATE_SIMCACHE_SIZE (sd) = n;
break;
#endif
#ifdef SIM_HAVE_FLATMEM
case 'm':
ul = strtol (arg, NULL, 0);
/* 16384: some minimal amount */
if (! isdigit (arg[0]) || ul < 16384)
{
sim_io_eprintf (sd, "Invalid memory size `%s'", arg);
return SIM_RC_FAIL;
}
STATE_MEM_SIZE (sd) = ul;
break;
#endif
#ifdef SIM_HAVE_MAX_INSNS
case 'M' :
ul = strtoul (arg, NULL, 0);
if (! isdigit (arg[0]))
{
sim_io_eprintf (sd, "Invalid maximum instruction count: `%s'", arg);
return SIM_RC_FAIL;
}
STATE_MAX_INSNS (sd) = ul;
break;
#endif
#ifdef SIM_HAVE_PROFILE
case 'p' :
if (! WITH_PROFILE)
sim_io_eprintf (sd, "Profile not compiled in, -p option ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
for (i = 0; i < MAX_PROFILE_VALUES; ++i)
CPU_PROFILE_FLAGS (STATE_CPU (sd, n))[i] = 1;
}
break;
case OPTION_PROFILE_INSN :
if (! (WITH_PROFILE & (1 << PROFILE_INSN_IDX)))
sim_io_eprintf (sd, "Instruction profiling not compiled in, `--profile-insn' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_PROFILE_FLAGS (STATE_CPU (sd, n))[PROFILE_INSN_IDX] = 1;
}
break;
case OPTION_PROFILE_MEMORY :
if (! (WITH_PROFILE & (1 << PROFILE_MEMORY_IDX)))
sim_io_eprintf (sd, "Memory profiling not compiled in, `--profile-memory' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_PROFILE_FLAGS (STATE_CPU (sd, n))[PROFILE_MEMORY_IDX] = 1;
}
break;
case OPTION_PROFILE_MODEL :
if (! (WITH_PROFILE & (1 << PROFILE_MODEL_IDX)))
sim_io_eprintf (sd, "Model profiling not compiled in, `--profile-model' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_PROFILE_FLAGS (STATE_CPU (sd, n))[PROFILE_MODEL_IDX] = 1;
}
break;
case OPTION_PROFILE_SIMCACHE :
if (! (WITH_PROFILE & (1 << PROFILE_SIMCACHE_IDX)))
sim_io_eprintf (sd, "Simulator cache profiling not compiled in, `--profile-simcache' ignored\n");
else
{
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_PROFILE_FLAGS (STATE_CPU (sd, n))[PROFILE_SIMCACHE_IDX] = 1;
}
break;
case OPTION_PROFILE_FILE :
/* FIXME: Might want this to apply to pc profiling only,
or have two profile file options. */
if (! WITH_PROFILE)
sim_io_eprintf (sd, "Profiling not compiled in, `--profile-file' ignored\n");
else
{
FILE *f = fopen (arg, "w");
if (f == NULL)
{
sim_io_eprintf (sd, "Unable to open profile output file `%s'\n", arg);
return SIM_RC_FAIL;
}
for (n = 0; n < MAX_NR_PROCESSORS; ++n)
CPU_PROFILE_FILE (STATE_CPU (sd, n)) = f;
}
break;
#ifdef SIM_HAVE_PROFILE_PC
case 'F' :
STATE_PROFILE_PC_FREQUENCY (sd) = atoi (arg);
/* FIXME: Validate arg. */
break;
case 'S' :
STATE_PROFILE_PC_SIZE (sd) = atoi (arg);
/* FIXME: Validate arg. */
break;
#endif
#endif /* SIM_HAVE_PROFILE */
case 'H':
sim_print_help (sd);
if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
exit (0);
/* FIXME: 'twould be nice to do something similar if gdb. */
break;
}
return SIM_RC_OK;
}
/* Initialize common parts before argument processing.
Called by sim_open. */
SIM_RC
sim_pre_argv_init (sd, myname)
SIM_DESC sd;
const char *myname;
{
STATE_MY_NAME (sd) = myname + strlen (myname);
while (STATE_MY_NAME (sd) > myname && STATE_MY_NAME (sd)[-1] != '/')
--STATE_MY_NAME (sd);
if (sim_add_option_table (sd, standard_options) != SIM_RC_OK)
return SIM_RC_FAIL;
return SIM_RC_OK;
}
/* Return non-zero if arg is a duplicate argument.
If ARG is NULL, initialize. */
#define ARG_HASH_SIZE 97
#define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE)
static int
dup_arg_p (arg)
char *arg;
{
int hash;
static char **arg_table = NULL;
if (arg == NULL)
{
if (arg_table == NULL)
arg_table = (char **) xmalloc (ARG_HASH_SIZE * sizeof (char *));
memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *));
return 0;
}
hash = ARG_HASH (arg);
while (arg_table[hash] != NULL)
{
if (strcmp (arg, arg_table[hash]) == 0)
return 1;
/* We assume there won't be more than ARG_HASH_SIZE arguments so we
don't check if the table is full. */
if (++hash == ARG_HASH_SIZE)
hash = 0;
}
arg_table[hash] = arg;
return 0;
}
/* Called by sim_open to parse the arguments. */
SIM_RC
sim_parse_args (sd, argv)
SIM_DESC sd;
char **argv;
{
int i, argc, num_opts;
char *p, *short_options;
/* The `val' option struct entry is dynamically assigned for options that
only come in the long form. ORIG_VAL is used to get the original value
back. */
unsigned char *orig_val;
struct option *lp, *long_options;
const struct option_list *ol;
const OPTION *opt;
OPTION_HANDLER **handlers;
/* Count the number of arguments. */
for (argc = 0; argv[argc] != NULL; ++argc)
continue;
/* Count the number of options. */
num_opts = 0;
for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
for (opt = ol->options; opt->opt.name != NULL; ++opt)
++num_opts;
/* Initialize duplicate argument checker. */
(void) dup_arg_p (NULL);
/* Build the option table for getopt. */
long_options = (struct option *) alloca ((num_opts + 1) * sizeof (struct option));
lp = long_options;
short_options = (char *) alloca (num_opts * 3 + 1);
p = short_options;
#if 0 /* ??? necessary anymore? */
/* Set '+' as first char so argument permutation isn't done. This is done
to workaround a problem with invoking getopt_long in run.c.: optind gets
decremented when the program name is reached. */
*p++ = '+';
#endif
handlers = (OPTION_HANDLER **) alloca (256 * sizeof (OPTION_HANDLER *));
memset (handlers, 0, 256 * sizeof (OPTION_HANDLER *));
orig_val = (unsigned char *) alloca (256);
for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
for (opt = ol->options; opt->opt.name != NULL; ++opt)
{
if (dup_arg_p (opt->opt.name))
continue;
if (opt->shortopt != 0)
{
*p++ = opt->shortopt;
if (opt->opt.has_arg == required_argument)
*p++ = ':';
else if (opt->opt.has_arg == optional_argument)
{ *p++ = ':'; *p++ = ':'; }
}
*lp = opt->opt;
/* Dynamically assign `val' numbers for long options that don't have
a short option equivalent. */
if (OPTION_LONG_ONLY_P (opt->opt.val))
lp->val = i++;
handlers[(unsigned char) lp->val] = opt->handler;
orig_val[(unsigned char) lp->val] = opt->opt.val;
++lp;
}
*p = 0;
lp->name = NULL;
/* Ensure getopt is initialized. */
optind = 0;
while (1)
{
int longind, optc;
optc = getopt_long (argc, argv, short_options, long_options, &longind);
if (optc == -1)
{
if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
STATE_PROG_ARGV (sd) = argv + optind;
break;
}
if (optc == '?')
return SIM_RC_FAIL;
if ((*handlers[optc]) (sd, orig_val[optc], optarg) == SIM_RC_FAIL)
return SIM_RC_FAIL;
}
return SIM_RC_OK;
}
/* Print help messages for the options. */
void
sim_print_help (sd)
SIM_DESC sd;
{
const struct option_list *ol;
const OPTION *opt;
if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
sim_io_printf (sd, "Usage: %s [options] program [program args]\n",
STATE_MY_NAME (sd));
/* Initialize duplicate argument checker. */
(void) dup_arg_p (NULL);
sim_io_printf (sd, "Options:\n");
for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
for (opt = ol->options; opt->opt.name != NULL; ++opt)
{
int comma, len;
const OPTION *o;
if (dup_arg_p (opt->opt.name))
continue;
if (opt->doc == NULL)
continue;
sim_io_printf (sd, " ");
comma = 0;
len = 2;
o = opt;
do
{
if (o->shortopt != '\0')
{
sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt);
len += (comma ? 2 : 0) + 2;
if (o->arg != NULL)
{
if (o->opt.has_arg != optional_argument)
{
sim_io_printf (sd, " ");
++len;
}
sim_io_printf (sd, "%s", o->arg);
len += strlen (o->arg);
}
comma = 1;
}
++o;
}
while (o->opt.name != NULL && o->doc == NULL);
o = opt;
do
{
if (o->opt.name != NULL)
{
sim_io_printf (sd, "%s--%s",
comma ? ", " : "",
o->opt.name);
len += ((comma ? 2 : 0)
+ 2
+ strlen (o->opt.name));
if (o->arg != NULL)
{
sim_io_printf (sd, " %s", o->arg);
len += 1 + strlen (o->arg);
}
comma = 1;
}
++o;
}
while (o->opt.name != NULL && o->doc == NULL);
if (len >= 30)
{
sim_io_printf (sd, "\n");
len = 0;
}
for (; len < 30; len++)
sim_io_printf (sd, " ");
sim_io_printf (sd, "%s\n", opt->doc);
}
if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
{
sim_io_printf (sd, "\n");
sim_io_printf (sd, "program args Arguments to pass to simulated program.\n");
sim_io_printf (sd, " Note: Very few simulators support this.\n");
}
}