1 /* Simulator memory option handling.
2 Copyright (C) 1996, 1997 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 #include "sim-assert.h"
23 #include "sim-options.h"
36 /* "core" command line options. */
39 OPTION_MEMORY_DELETE
= OPTION_START
,
47 static DECLARE_OPTION_HANDLER (memory_option_handler
);
49 static const OPTION memory_options
[] =
51 { {"delete-memory", required_argument
, NULL
, OPTION_MEMORY_DELETE
},
52 '\0', "ADDRESS", "Delete memory at ADDRESS",
53 memory_option_handler
},
55 { {"memory-region", required_argument
, NULL
, OPTION_MEMORY_REGION
},
56 '\0', "ADDRESS,SIZE[,MODULO]", "Add a memory region",
57 memory_option_handler
},
59 { {"memory-alias", required_argument
, NULL
, OPTION_MEMORY_ALIAS
},
60 '\0', "ADDRESS,SIZE{,ADDRESS}", "Add memory shadow",
61 memory_option_handler
},
63 { {"memory-size", required_argument
, NULL
, OPTION_MEMORY_SIZE
},
64 '\0', "SIZE", "Add memory at address zero",
65 memory_option_handler
},
67 { {"memory-clear", no_argument
, NULL
, OPTION_MEMORY_CLEAR
},
68 '\0', NULL
, "Clear all memory regions",
69 memory_option_handler
},
71 { {"info-memory", no_argument
, NULL
, OPTION_MEMORY_INFO
},
72 '\0', NULL
, "Add memory at address zero",
73 memory_option_handler
},
75 { {NULL
, no_argument
, NULL
, 0}, '\0', NULL
, NULL
, NULL
}
80 memory_option_handler (sd
, opt
, arg
, is_command
)
89 case OPTION_MEMORY_DELETE
:
91 address_word addr
= strtoul (arg
, NULL
, 0);
92 sim_memopt
**entry
= &STATE_MEMOPT (sd
);
94 while ((*entry
) != NULL
&& (*entry
)->addr
!= addr
)
95 entry
= &(*entry
)->next
;
98 sim_io_eprintf (sd
, "Memory at 0x%lx not found, not deleted\n",
102 /* delete any buffer */
103 if ((*entry
)->buf
!= NULL
)
104 zfree ((*entry
)->buf
);
105 /* delete it and its aliases */
107 *entry
= alias
->next
;
108 while (alias
!= NULL
)
110 sim_memopt
*dead
= alias
;
111 alias
= alias
->alias
;
112 sim_core_detach (sd
, NULL
, attach_raw_memory
, 0, dead
->addr
);
118 case OPTION_MEMORY_REGION
:
121 address_word addr
= 0;
122 address_word nr_bytes
= 0;
124 sim_memopt
**entry
= &STATE_MEMOPT (sd
);
125 /* parse the arguments */
126 addr
= strtoul (chp
, &chp
, 0);
129 sim_io_eprintf (sd
, "Missing size for memory-region\n");
133 nr_bytes
= strtoul (chp
, &chp
, 0);
135 modulo
= strtoul (chp
+ 1, NULL
, 0);
136 /* try to attach it */
137 sim_core_attach (sd
, NULL
,
138 attach_raw_memory
, access_read_write_exec
, 0,
139 addr
, nr_bytes
, modulo
, NULL
, NULL
);
140 /* ok, so insert it */
141 while ((*entry
) != NULL
)
142 entry
= &(*entry
)->next
;
143 (*entry
) = ZALLOC (sim_memopt
);
144 (*entry
)->addr
= addr
;
145 (*entry
)->nr_bytes
= nr_bytes
;
146 (*entry
)->modulo
= modulo
;
150 case OPTION_MEMORY_ALIAS
:
152 sim_io_eprintf (sd
, "memory-alias not supported for for this simulator\n");
156 case OPTION_MEMORY_SIZE
:
158 sim_io_eprintf (sd
, "memory-size not supported for for this simulator\n");
163 case OPTION_MEMORY_CLEAR
:
166 for (entry
= STATE_MEMOPT (sd
); entry
!= NULL
; entry
= entry
->next
)
169 for (alias
= entry
; alias
!= NULL
; alias
= alias
->next
)
172 address_word nr_bytes
;
173 if (alias
->modulo
!= 0)
174 nr_bytes
= alias
->modulo
;
176 nr_bytes
= alias
->nr_bytes
;
177 sim_core_write_buffer (sd
, NULL
, sim_core_write_map
,
179 alias
->addr
+ nr_bytes
,
188 case OPTION_MEMORY_INFO
:
191 sim_io_printf (sd
, "Memory maps:\n");
192 for (entry
= STATE_MEMOPT (sd
); entry
!= NULL
; entry
= entry
->next
)
195 sim_io_printf (sd
, " memory");
196 if (entry
->alias
== NULL
)
198 sim_io_printf (sd
, " region 0x%08lx,0x%lx",
200 (long) entry
->nr_bytes
);
201 if (entry
->modulo
!= 0)
202 sim_io_printf (sd
, ",0x%lx", (long) entry
->modulo
);
206 sim_io_printf (sd
, " alias 0x%08lx,0x%lx",
208 (long) entry
->nr_bytes
);
209 for (alias
= entry
->alias
; alias
!= NULL
; alias
= alias
->next
)
210 sim_io_printf (sd
, ",0x%08lx", entry
->addr
);
212 sim_io_printf (sd
, "\n");
219 sim_io_eprintf (sd
, "Unknown watch option %d\n", opt
);
228 /* "memory" module install handler.
230 This is called via sim_module_install to install the "memory" subsystem
231 into the simulator. */
233 static MODULE_INIT_FN sim_memory_init
;
234 static MODULE_UNINSTALL_FN sim_memory_uninstall
;
237 sim_memopt_install (SIM_DESC sd
)
239 SIM_ASSERT (STATE_MAGIC (sd
) == SIM_MAGIC_NUMBER
);
240 sim_add_option_table (sd
, memory_options
);
241 sim_module_add_uninstall_fn (sd
, sim_memory_uninstall
);
242 sim_module_add_init_fn (sd
, sim_memory_init
);
247 /* Uninstall the "memory" subsystem from the simulator. */
250 sim_memory_uninstall (SIM_DESC sd
)
252 /* FIXME: free buffers, etc. */
257 sim_memory_init (SIM_DESC sd
)
259 /* FIXME: anything needed? */