e0432f88c58529ed3b9da6d09b37772c05021477
1 /* Miscellaneous simulator utilities.
2 Copyright (C) 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"
32 #ifdef HAVE_SYS_TIME_H
33 #include <sys/time.h> /* needed by sys/resource.h */
36 #ifdef HAVE_SYS_RESOURCE_H
37 #include <sys/resource.h>
48 #include "libiberty.h"
50 #include "sim-utils.h"
52 /* Global pointer to all state data.
54 struct sim_state
*current_state
;
56 /* Allocate zero filled memory with xmalloc. */
59 zalloc (unsigned long size
)
61 void *memory
= (void *) xmalloc (size
);
62 memset (memory
, 0, size
);
72 /* Allocate a sim_state struct. */
75 sim_state_alloc (void)
77 SIM_DESC sd
= zalloc (sizeof (struct sim_state
));
78 sd
->base
.magic
= SIM_MAGIC_NUMBER
;
82 /* Free a sim_state struct. */
85 sim_state_free (SIM_DESC sd
)
87 ASSERT (sd
->base
.magic
== SIM_MAGIC_NUMBER
);
91 /* Turn VALUE into a string with commas. */
94 sim_add_commas (char *buf
, int sizeof_buf
, unsigned long value
)
97 char *endbuf
= buf
+ sizeof_buf
- 1;
107 *--endbuf
= (value
% 10) + '0';
108 } while ((value
/= 10) != 0);
113 /* Make a copy of ARGV.
114 This can also be used to copy the environment vector.
115 The result is a pointer to the malloc'd copy or NULL if insufficient
131 for (argc
= 0; argv
[argc
] != NULL
; argc
++);
132 copy
= (char **) malloc ((argc
+ 1) * sizeof (char *));
137 for (argc
= 0; argv
[argc
] != NULL
; argc
++)
139 int len
= strlen (argv
[argc
]);
140 copy
[argc
] = malloc (sizeof (char *) * (len
+ 1));
141 if (copy
[argc
] == NULL
)
146 strcpy (copy
[argc
], argv
[argc
]);
152 /* Analyze a bfd and set various fields in the state struct. */
155 sim_analyze_program (sd
, prog_bfd
)
161 SIM_ASSERT (STATE_MAGIC (sd
) == SIM_MAGIC_NUMBER
);
162 STATE_PROG_BFD (sd
) = prog_bfd
;
163 STATE_START_ADDR (sd
) = bfd_get_start_address (prog_bfd
);
165 for (s
= prog_bfd
->sections
; s
; s
= s
->next
)
166 if (strcmp (bfd_get_section_name (prog_bfd
, s
), ".text") == 0)
168 STATE_TEXT_SECTION (sd
) = s
;
169 STATE_TEXT_START (sd
) = bfd_get_section_vma (prog_bfd
, s
);
170 STATE_TEXT_END (sd
) = STATE_TEXT_START (sd
) + bfd_section_size (prog_bfd
, s
);
175 /* Simulator timing support. */
177 /* Called before sim_elapsed_time_since to get a reference point. */
180 sim_elapsed_time_get ()
182 #ifdef HAVE_GETRUSAGE
183 struct rusage mytime
;
184 if (getrusage (RUSAGE_SELF
, &mytime
) == 0)
185 return (SIM_ELAPSED_TIME
) (((double) mytime
.ru_utime
.tv_sec
* 1000) + (((double) mytime
.ru_utime
.tv_usec
+ 500) / 1000));
189 return (SIM_ELAPSED_TIME
) time ((time_t) 0);
196 /* Return the elapsed time in milliseconds since START.
197 The actual time may be cpu usage (prefered) or wall clock. */
200 sim_elapsed_time_since (start
)
201 SIM_ELAPSED_TIME start
;
203 #ifdef HAVE_GETRUSAGE
204 return sim_elapsed_time_get () - start
;
207 return (sim_elapsed_time_get () - start
) * 1000;
This page took 0.033767 seconds and 4 git commands to generate.