--- /dev/null
+/* 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. */
+
+#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 },
+
+ { {"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 instruction 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 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;
+
+ 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, "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, "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, "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, "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, "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, "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, "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, "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, "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, "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, "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. */
+ 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 = (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");
+ }
+}
projects / binutils-gdb.git / commitdiff