22469a10e8
(CONFIG_CFLAGS): Add it. * aclocal.m4 (SIM_AC_OPTION_ENVIRONMENT): Handle --enable-sim-environment option. * configure: Regenerated. * sim-config.h (environment support): Rewrite. * sim-config.c (current_environment): Define as enum, unconditionally. (current_alignment): Define unconditionally. (config_environment_to_a): Update. (config_alignment_to_a): Fix type of argument. Define unconditionally. (sim_config): Handle environment and alignment determination unconditionally. Delete sanity checks of current_environment, unnecessary. (print_sim_config): Update. * sim-options.c (STANDARD_OPTIONS enum): Add OPTION_ENVIRONMENT. (standard_options): Add --environment. (standard_option_handler): Likewise.
798 lines
21 KiB
C
798 lines
21 KiB
C
/* Simulator option handling.
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Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "sim-main.h"
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include <ctype.h>
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#include "libiberty.h"
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#include "sim-options.h"
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#include "sim-io.h"
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#include "sim-assert.h"
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#include "bfd.h"
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/* Add a set of options to the simulator.
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TABLE is an array of OPTIONS terminated by a NULL `opt.name' entry.
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This is intended to be called by modules in their `install' handler. */
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SIM_RC
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sim_add_option_table (sd, table)
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SIM_DESC sd;
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const OPTION *table;
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{
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struct option_list *ol = ((struct option_list *)
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xmalloc (sizeof (struct option_list)));
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/* Note: The list is constructed in the reverse order we're called so
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later calls will override earlier ones (in case that ever happens).
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This is the intended behaviour. */
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ol->next = STATE_OPTIONS (sd);
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ol->options = table;
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STATE_OPTIONS (sd) = ol;
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return SIM_RC_OK;
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}
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/* Standard option table.
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Modules may specify additional ones.
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The caller of sim_parse_args may also specify additional options
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by calling sim_add_option_table first. */
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static DECLARE_OPTION_HANDLER (standard_option_handler);
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/* FIXME: We shouldn't print in --help output options that aren't usable.
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Some fine tuning will be necessary. One can either move less general
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options to another table or use a HAVE_FOO macro to ifdef out unavailable
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options. */
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/* ??? One might want to conditionally compile out the entries that
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aren't enabled. There's a distinction, however, between options a
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simulator can't support and options that haven't been configured in.
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Certainly options a simulator can't support shouldn't appear in the
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output of --help. Whether the same thing applies to options that haven't
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been configured in or not isn't something I can get worked up over.
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[Note that conditionally compiling them out might simply involve moving
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the option to another table.]
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If you decide to conditionally compile them out as well, delete this
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comment and add a comment saying that that is the rule. */
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typedef enum {
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OPTION_DEBUG_INSN = OPTION_START,
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OPTION_DEBUG_FILE,
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OPTION_DO_COMMAND,
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OPTION_ARCHITECTURE,
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OPTION_TARGET,
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OPTION_ARCHITECTURE_INFO,
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OPTION_ENVIRONMENT,
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OPTION_ALIGNMENT,
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OPTION_VERBOSE,
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#if defined (SIM_HAVE_BIENDIAN)
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OPTION_ENDIAN,
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#endif
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OPTION_DEBUG,
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#ifdef SIM_HAVE_FLATMEM
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OPTION_MEM_SIZE,
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#endif
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OPTION_HELP,
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#ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
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OPTION_H8300,
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#endif
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} STANDARD_OPTIONS;
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static const OPTION standard_options[] =
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{
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{ {"verbose", no_argument, NULL, OPTION_VERBOSE},
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'v', NULL, "Verbose output",
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standard_option_handler },
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#if defined (SIM_HAVE_BIENDIAN) /* ??? && WITH_TARGET_BYTE_ORDER == 0 */
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{ {"endian", required_argument, NULL, OPTION_ENDIAN},
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'E', "big|little", "Set endianness",
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standard_option_handler },
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#endif
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#ifdef SIM_HAVE_ENVIRONMENT
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/* This option isn't supported unless all choices are supported in keeping
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with the goal of not printing in --help output things the simulator can't
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do [as opposed to things that just haven't been configured in]. */
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{ {"environment", required_argument, NULL, OPTION_ENVIRONMENT},
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'\0', "user|virtual|operating", "Set running environment",
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standard_option_handler },
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#endif
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{ {"alignment", required_argument, NULL, OPTION_ALIGNMENT},
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'\0', "strict|nonstrict|forced", "Set memory access alignment",
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standard_option_handler },
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{ {"debug", no_argument, NULL, OPTION_DEBUG},
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'D', NULL, "Print debugging messages",
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standard_option_handler },
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{ {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN},
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'\0', NULL, "Print instruction debugging messages",
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standard_option_handler },
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{ {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE},
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'\0', "FILE NAME", "Specify debugging output file",
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standard_option_handler },
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#ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
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{ {"h8300h", no_argument, NULL, OPTION_H8300},
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'h', NULL, "Indicate the CPU is h8/300h or h8/300s",
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standard_option_handler },
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#endif
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#ifdef SIM_HAVE_FLATMEM
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{ {"mem-size", required_argument, NULL, OPTION_MEM_SIZE},
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'm', "MEMORY SIZE", "Specify memory size",
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standard_option_handler },
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#endif
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{ {"do-command", required_argument, NULL, OPTION_DO_COMMAND},
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'\0', "COMMAND", ""/*undocumented*/,
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standard_option_handler },
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{ {"help", no_argument, NULL, OPTION_HELP},
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'H', NULL, "Print help information",
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standard_option_handler },
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{ {"architecture", required_argument, NULL, OPTION_ARCHITECTURE},
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'\0', "MACHINE", "Specify the architecture to use",
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standard_option_handler },
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{ {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO},
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'\0', NULL, "List supported architectures",
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standard_option_handler },
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{ {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO},
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'\0', NULL, NULL,
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standard_option_handler },
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{ {"target", required_argument, NULL, OPTION_TARGET},
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'\0', "BFDNAME", "Specify the object-code format for the object files",
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standard_option_handler },
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{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
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};
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static SIM_RC
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standard_option_handler (sd, opt, arg, is_command)
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SIM_DESC sd;
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int opt;
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char *arg;
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int is_command;
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{
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int i,n;
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switch ((STANDARD_OPTIONS) opt)
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{
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case OPTION_VERBOSE:
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STATE_VERBOSE_P (sd) = 1;
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break;
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#ifdef SIM_HAVE_BIENDIAN
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case OPTION_ENDIAN:
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if (strcmp (arg, "big") == 0)
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{
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if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN)
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{
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sim_io_eprintf (sd, "Simulator compiled for little endian only.\n");
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return SIM_RC_FAIL;
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}
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/* FIXME:wip: Need to set something in STATE_CONFIG. */
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current_target_byte_order = BIG_ENDIAN;
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}
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else if (strcmp (arg, "little") == 0)
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{
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if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN)
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{
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sim_io_eprintf (sd, "Simulator compiled for big endian only.\n");
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return SIM_RC_FAIL;
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}
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/* FIXME:wip: Need to set something in STATE_CONFIG. */
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current_target_byte_order = LITTLE_ENDIAN;
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}
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else
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{
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sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg);
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return SIM_RC_FAIL;
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}
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break;
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#endif
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case OPTION_ENVIRONMENT:
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if (strcmp (arg, "user") == 0)
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current_environment = USER_ENVIRONMENT;
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else if (strcmp (arg, "virtual") == 0)
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current_environment = VIRTUAL_ENVIRONMENT;
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else if (strcmp (arg, "operating") == 0)
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current_environment = OPERATING_ENVIRONMENT;
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else
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{
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sim_io_eprintf (sd, "Invalid environment specification `%s'\n", arg);
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return SIM_RC_FAIL;
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}
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if (WITH_ENVIRONMENT != ALL_ENVIRONMENT
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&& WITH_ENVIRONMENT != current_environment)
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{
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char *type;
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switch (WITH_ENVIRONMENT)
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{
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case USER_ENVIRONMENT: type = "user"; break;
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case VIRTUAL_ENVIRONMENT: type = "virtual"; break;
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case OPERATING_ENVIRONMENT: type = "operating"; break;
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}
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sim_io_eprintf (sd, "Simulator compiled for the %s environment only.\n",
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type);
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return SIM_RC_FAIL;
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}
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break;
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case OPTION_ALIGNMENT:
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if (strcmp (arg, "strict") == 0)
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{
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if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == STRICT_ALIGNMENT)
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{
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current_alignment = STRICT_ALIGNMENT;
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break;
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}
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}
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else if (strcmp (arg, "nonstrict") == 0)
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{
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if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == NONSTRICT_ALIGNMENT)
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{
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current_alignment = NONSTRICT_ALIGNMENT;
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break;
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}
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}
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else if (strcmp (arg, "forced") == 0)
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{
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if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == FORCED_ALIGNMENT)
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{
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current_alignment = FORCED_ALIGNMENT;
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break;
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}
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}
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else
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{
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sim_io_eprintf (sd, "Invalid alignment specification `%s'\n", arg);
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return SIM_RC_FAIL;
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}
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switch (WITH_ALIGNMENT)
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{
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case STRICT_ALIGNMENT:
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sim_io_eprintf (sd, "Simulator compiled for strict alignment only.\n");
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break;
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case NONSTRICT_ALIGNMENT:
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sim_io_eprintf (sd, "Simulator compiled for nonstrict alignment only.\n");
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break;
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case FORCED_ALIGNMENT:
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sim_io_eprintf (sd, "Simulator compiled for forced alignment only.\n");
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break;
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}
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return SIM_RC_FAIL;
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case OPTION_DEBUG:
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if (! WITH_DEBUG)
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sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n");
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else
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{
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for (n = 0; n < MAX_NR_PROCESSORS; ++n)
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for (i = 0; i < MAX_DEBUG_VALUES; ++i)
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CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1;
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}
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break;
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case OPTION_DEBUG_INSN :
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if (! WITH_DEBUG)
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sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n");
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else
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{
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for (n = 0; n < MAX_NR_PROCESSORS; ++n)
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CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1;
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}
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break;
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case OPTION_DEBUG_FILE :
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if (! WITH_DEBUG)
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sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n");
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else
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{
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FILE *f = fopen (arg, "w");
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if (f == NULL)
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{
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sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg);
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return SIM_RC_FAIL;
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}
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for (n = 0; n < MAX_NR_PROCESSORS; ++n)
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CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f;
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}
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break;
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#ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */
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case OPTION_H8300:
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set_h8300h (1);
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break;
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#endif
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#ifdef SIM_HAVE_FLATMEM
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case OPTION_MEM_SIZE:
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{
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unsigned long ul = strtol (arg, NULL, 0);
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/* 16384: some minimal amount */
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if (! isdigit (arg[0]) || ul < 16384)
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{
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sim_io_eprintf (sd, "Invalid memory size `%s'", arg);
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return SIM_RC_FAIL;
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}
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STATE_MEM_SIZE (sd) = ul;
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}
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break;
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#endif
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case OPTION_DO_COMMAND:
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sim_do_command (sd, arg);
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break;
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case OPTION_ARCHITECTURE:
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{
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const struct bfd_arch_info *ap = bfd_scan_arch (arg);
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if (ap == NULL)
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{
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sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg);
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return SIM_RC_FAIL;
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}
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STATE_ARCHITECTURE (sd) = ap;
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break;
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}
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case OPTION_ARCHITECTURE_INFO:
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{
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const char **list = bfd_arch_list();
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const char **lp;
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if (list == NULL)
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abort ();
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sim_io_printf (sd, "Valid architectures:");
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for (lp = list; *lp != NULL; lp++)
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sim_io_printf (sd, " %s", *lp);
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sim_io_printf (sd, "\n");
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free (list);
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break;
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}
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case OPTION_TARGET:
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{
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STATE_TARGET (sd) = xstrdup (arg);
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break;
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}
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case OPTION_HELP:
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sim_print_help (sd, is_command);
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if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
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exit (0);
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/* FIXME: 'twould be nice to do something similar if gdb. */
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break;
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}
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return SIM_RC_OK;
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}
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/* Add the standard option list to the simulator. */
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SIM_RC
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standard_install (SIM_DESC sd)
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{
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SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
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if (sim_add_option_table (sd, standard_options) != SIM_RC_OK)
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return SIM_RC_FAIL;
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return SIM_RC_OK;
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}
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/* Return non-zero if arg is a duplicate argument.
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If ARG is NULL, initialize. */
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#define ARG_HASH_SIZE 97
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#define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE)
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static int
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dup_arg_p (arg)
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char *arg;
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{
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int hash;
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static char **arg_table = NULL;
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if (arg == NULL)
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{
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if (arg_table == NULL)
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arg_table = (char **) xmalloc (ARG_HASH_SIZE * sizeof (char *));
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memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *));
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return 0;
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}
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hash = ARG_HASH (arg);
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while (arg_table[hash] != NULL)
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{
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if (strcmp (arg, arg_table[hash]) == 0)
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return 1;
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/* We assume there won't be more than ARG_HASH_SIZE arguments so we
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don't check if the table is full. */
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if (++hash == ARG_HASH_SIZE)
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hash = 0;
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}
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arg_table[hash] = arg;
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return 0;
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}
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/* Called by sim_open to parse the arguments. */
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SIM_RC
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sim_parse_args (sd, argv)
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SIM_DESC sd;
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char **argv;
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{
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int i, argc, num_opts;
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char *p, *short_options;
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/* The `val' option struct entry is dynamically assigned for options that
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only come in the long form. ORIG_VAL is used to get the original value
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back. */
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int *orig_val;
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struct option *lp, *long_options;
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const struct option_list *ol;
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const OPTION *opt;
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OPTION_HANDLER **handlers;
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/* Count the number of arguments. */
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for (argc = 0; argv[argc] != NULL; ++argc)
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continue;
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/* Count the number of options. */
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num_opts = 0;
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for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
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for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
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++num_opts;
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/* Initialize duplicate argument checker. */
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(void) dup_arg_p (NULL);
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/* Build the option table for getopt. */
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long_options = NZALLOC (struct option, num_opts + 1);
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lp = long_options;
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short_options = NZALLOC (char, num_opts * 3 + 1);
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p = short_options;
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handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts);
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orig_val = NZALLOC (int, OPTION_START + num_opts);
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/* Set '+' as first char so argument permutation isn't done. This
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is done to stop getopt_long returning options that appear after
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the target program. Such options should be passed unchanged into
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the program image. */
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*p++ = '+';
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for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
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for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
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{
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if (dup_arg_p (opt->opt.name))
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continue;
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if (opt->shortopt != 0)
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{
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*p++ = opt->shortopt;
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if (opt->opt.has_arg == required_argument)
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*p++ = ':';
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|
else if (opt->opt.has_arg == optional_argument)
|
|
{ *p++ = ':'; *p++ = ':'; }
|
|
handlers[(unsigned char) opt->shortopt] = opt->handler;
|
|
if (opt->opt.val != 0)
|
|
orig_val[(unsigned char) opt->shortopt] = opt->opt.val;
|
|
else
|
|
orig_val[(unsigned char) opt->shortopt] = opt->shortopt;
|
|
}
|
|
if (opt->opt.name != NULL)
|
|
{
|
|
*lp = opt->opt;
|
|
/* Dynamically assign `val' numbers for long options. */
|
|
lp->val = i++;
|
|
handlers[lp->val] = opt->handler;
|
|
orig_val[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) = dupargv (argv + optind);
|
|
break;
|
|
}
|
|
if (optc == '?')
|
|
return SIM_RC_FAIL;
|
|
|
|
if ((*handlers[optc]) (sd, orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL)
|
|
return SIM_RC_FAIL;
|
|
}
|
|
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
/* Print help messages for the options. */
|
|
|
|
void
|
|
sim_print_help (sd, is_command)
|
|
SIM_DESC sd;
|
|
int is_command;
|
|
{
|
|
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);
|
|
|
|
if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
|
|
sim_io_printf (sd, "Options:\n");
|
|
else
|
|
sim_io_printf (sd, "Commands:\n");
|
|
|
|
for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
|
|
for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
|
|
{
|
|
const int indent = 30;
|
|
int comma, len;
|
|
const OPTION *o;
|
|
|
|
if (dup_arg_p (opt->opt.name))
|
|
continue;
|
|
|
|
if (opt->doc == NULL)
|
|
continue;
|
|
|
|
if (opt->doc_name != NULL && opt->doc_name [0] == '\0')
|
|
continue;
|
|
|
|
sim_io_printf (sd, " ");
|
|
|
|
comma = 0;
|
|
len = 2;
|
|
|
|
/* list any short options (aliases) for the current OPT */
|
|
if (!is_command)
|
|
{
|
|
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, "[%s]", o->arg);
|
|
len += 1 + strlen (o->arg) + 1;
|
|
}
|
|
else
|
|
{
|
|
sim_io_printf (sd, " %s", o->arg);
|
|
len += 1 + strlen (o->arg);
|
|
}
|
|
}
|
|
comma = 1;
|
|
}
|
|
++o;
|
|
}
|
|
while (OPTION_VALID_P (o) && o->doc == NULL);
|
|
}
|
|
|
|
/* list any long options (aliases) for the current OPT */
|
|
o = opt;
|
|
do
|
|
{
|
|
const char *name;
|
|
if (o->doc_name != NULL)
|
|
name = o->doc_name;
|
|
else
|
|
name = o->opt.name;
|
|
if (name != NULL)
|
|
{
|
|
sim_io_printf (sd, "%s%s%s",
|
|
comma ? ", " : "",
|
|
is_command ? "" : "--",
|
|
name);
|
|
len += ((comma ? 2 : 0)
|
|
+ (is_command ? 0 : 2)
|
|
+ strlen (name));
|
|
if (o->arg != NULL)
|
|
{
|
|
if (o->opt.has_arg == optional_argument)
|
|
{
|
|
sim_io_printf (sd, " [%s]", o->arg);
|
|
len += 2 + strlen (o->arg) + 1;
|
|
}
|
|
else
|
|
{
|
|
sim_io_printf (sd, " %s", o->arg);
|
|
len += 1 + strlen (o->arg);
|
|
}
|
|
}
|
|
comma = 1;
|
|
}
|
|
++o;
|
|
}
|
|
while (OPTION_VALID_P (o) && o->doc == NULL);
|
|
|
|
if (len >= indent)
|
|
{
|
|
sim_io_printf (sd, "\n%*s", indent, "");
|
|
}
|
|
else
|
|
sim_io_printf (sd, "%*s", indent - len, "");
|
|
|
|
/* print the description, word wrap long lines */
|
|
{
|
|
const char *chp = opt->doc;
|
|
unsigned doc_width = 80 - indent;
|
|
while (strlen (chp) >= doc_width) /* some slack */
|
|
{
|
|
const char *end = chp + doc_width - 1;
|
|
while (end > chp && !isspace (*end))
|
|
end --;
|
|
if (end == chp)
|
|
end = chp + doc_width - 1;
|
|
sim_io_printf (sd, "%.*s\n%*s", end - chp, chp, indent, "");
|
|
chp = end;
|
|
while (isspace (*chp) && *chp != '\0')
|
|
chp++;
|
|
}
|
|
sim_io_printf (sd, "%s\n", chp);
|
|
}
|
|
}
|
|
|
|
sim_io_printf (sd, "\n");
|
|
sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n",
|
|
STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command");
|
|
sim_io_printf (sd, " may not be applicable\n");
|
|
|
|
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");
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
SIM_RC
|
|
sim_args_command (sd, cmd)
|
|
SIM_DESC sd;
|
|
char *cmd;
|
|
{
|
|
/* something to do? */
|
|
if (cmd == NULL)
|
|
return SIM_RC_OK; /* FIXME - perhaphs help would be better */
|
|
|
|
if (cmd [0] == '-')
|
|
{
|
|
/* user specified -<opt> ... form? */
|
|
char **argv = buildargv (cmd);
|
|
SIM_RC rc = sim_parse_args (sd, argv);
|
|
freeargv (argv);
|
|
return rc;
|
|
}
|
|
else
|
|
{
|
|
/* user specified <opt> form? */
|
|
const struct option_list *ol;
|
|
const OPTION *opt;
|
|
char **argv = buildargv (cmd);
|
|
/* most recent option match */
|
|
const OPTION *matching_opt = NULL;
|
|
int matching_argi = -1;
|
|
if (argv [0] != NULL)
|
|
for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
|
|
for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
|
|
{
|
|
int argi = 0;
|
|
const char *name = opt->opt.name;
|
|
if (name == NULL)
|
|
continue;
|
|
while (strncmp (name, argv [argi], strlen (argv [argi])) == 0)
|
|
{
|
|
name = &name [strlen (argv[argi])];
|
|
if (name [0] == '-')
|
|
{
|
|
/* leading match ...<a-b-c>-d-e-f - continue search */
|
|
name ++; /* skip `-' */
|
|
argi ++;
|
|
continue;
|
|
}
|
|
else if (name [0] == '\0')
|
|
{
|
|
/* exact match ...<a-b-c-d-e-f> - better than before? */
|
|
if (argi > matching_argi)
|
|
{
|
|
matching_argi = argi;
|
|
matching_opt = opt;
|
|
}
|
|
break;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
if (matching_opt != NULL)
|
|
{
|
|
switch (matching_opt->opt.has_arg)
|
|
{
|
|
case no_argument:
|
|
if (argv [matching_argi + 1] == NULL)
|
|
matching_opt->handler (sd, matching_opt->opt.val,
|
|
NULL, 1/*is_command*/);
|
|
else
|
|
sim_io_eprintf (sd, "Command `%s' takes no arguments\n",
|
|
matching_opt->opt.name);
|
|
break;
|
|
case optional_argument:
|
|
if (argv [matching_argi + 1] == NULL)
|
|
matching_opt->handler (sd, matching_opt->opt.val,
|
|
NULL, 1/*is_command*/);
|
|
else if (argv [matching_argi + 2] == NULL)
|
|
matching_opt->handler (sd, matching_opt->opt.val,
|
|
argv [matching_argi + 1], 1/*is_command*/);
|
|
else
|
|
sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n",
|
|
matching_opt->opt.name);
|
|
break;
|
|
case required_argument:
|
|
if (argv [matching_argi + 1] == NULL)
|
|
sim_io_eprintf (sd, "Command `%s' requires an argument\n",
|
|
matching_opt->opt.name);
|
|
else if (argv [matching_argi + 2] == NULL)
|
|
matching_opt->handler (sd, matching_opt->opt.val,
|
|
argv [matching_argi + 1], 1/*is_command*/);
|
|
else
|
|
sim_io_eprintf (sd, "Command `%s' requires only one argument\n",
|
|
matching_opt->opt.name);
|
|
}
|
|
return SIM_RC_OK;
|
|
}
|
|
}
|
|
|
|
/* didn't find anything that remotly matched */
|
|
return SIM_RC_FAIL;
|
|
}
|