2317a49939
* sim-basics.h (sim_add_commas): Add prototype. * cgen-scache.c (scache_print_profile): Print commas in numbers. * sim-profile.c (COMMAS): New macro. (print_*): Use it to print commas in numbers.
193 lines
4.2 KiB
C
193 lines
4.2 KiB
C
/* Miscellaneous simulator utilities.
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Copyright (C) 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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#include "sim-assert.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_TIME_H
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#include <time.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h> /* needed by sys/resource.h */
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#include "libiberty.h"
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#include "bfd.h"
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/* Global pointer to all state data.
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Set by sim_resume. */
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struct sim_state *current_state;
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/* Allocate zero filled memory with xmalloc. */
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void *
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zalloc (unsigned long size)
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{
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void *memory = (void *) xmalloc (size);
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memset (memory, 0, size);
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return memory;
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}
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void
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zfree (void *data)
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{
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free (data);
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}
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/* Allocate a sim_state struct. */
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SIM_DESC
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sim_state_alloc (void)
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{
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SIM_DESC sd = zalloc (sizeof (struct sim_state));
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sd->base.magic = SIM_MAGIC_NUMBER;
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return sd;
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}
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/* Free a sim_state struct. */
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void
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sim_state_free (SIM_DESC sd)
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{
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ASSERT (sd->base.magic == SIM_MAGIC_NUMBER);
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zfree (sd);
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}
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/* Turn VALUE into a string with commas. */
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char *
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sim_add_commas (char *buf, int sizeof_buf, unsigned long value)
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{
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int comma = 3;
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char *endbuf = buf + sizeof_buf - 1;
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*--endbuf = '\0';
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do {
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if (comma-- == 0)
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{
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*--endbuf = ',';
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comma = 2;
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}
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*--endbuf = (value % 10) + '0';
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} while ((value /= 10) != 0);
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return endbuf;
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}
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/* Make a copy of ARGV.
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This can also be used to copy the environment vector.
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The result is a pointer to the malloc'd copy or NULL if insufficient
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memory available. */
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char **
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sim_copy_argv (argv)
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char **argv;
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{
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int i,argc,len;
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char **copy,*p;
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argc = len = 0;
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if (argv)
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{
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for ( ; argv[argc]; ++argc)
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len += strlen (argv[argc]) + 1;
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}
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copy = (char **) malloc ((argc + 1) * sizeof (char *) + len);
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if (copy == NULL)
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return NULL;
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p = (char *) copy + (argc + 1) * sizeof (char *);
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for (i = 0; i < argc; ++i)
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{
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copy[i] = p;
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strcpy (p, argv[i]);
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p += strlen (argv[i]) + 1;
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}
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copy[argc] = 0;
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return copy;
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}
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/* Analyze a bfd and set various fields in the state struct. */
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void
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sim_analyze_program (sd, prog_bfd)
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SIM_DESC sd;
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bfd *prog_bfd;
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{
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asection *s;
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STATE_PROG_BFD (sd) = prog_bfd;
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STATE_START_ADDR (sd) = bfd_get_start_address (prog_bfd);
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for (s = prog_bfd->sections; s; s = s->next)
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if (strcmp (bfd_get_section_name (prog_bfd, s), ".text") == 0)
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{
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STATE_TEXT_SECTION (sd) = s;
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STATE_TEXT_START (sd) = bfd_get_section_vma (prog_bfd, s);
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STATE_TEXT_END (sd) = STATE_TEXT_START (sd) + bfd_section_size (prog_bfd, s);
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break;
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}
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}
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/* Simulator timing support. */
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/* Called before sim_elapsed_time_since to get a reference point. */
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SIM_ELAPSED_TIME
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sim_elapsed_time_get ()
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{
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#ifdef HAVE_GETRUSAGE
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struct rusage mytime;
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if (getrusage (RUSAGE_SELF, &mytime) == 0)
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return (SIM_ELAPSED_TIME) (((double) mytime.ru_utime.tv_sec * 1000) + (((double) mytime.ru_utime.tv_usec + 500) / 1000));
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return 0;
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#else
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#ifdef HAVE_TIME
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return (SIM_ELAPSED_TIME) time ((time_t) 0);
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#else
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return 0;
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#endif
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#endif
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}
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/* Return the elapsed time in milliseconds since START.
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The actual time may be cpu usage (prefered) or wall clock. */
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unsigned long
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sim_elapsed_time_since (start)
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SIM_ELAPSED_TIME start;
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{
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#ifdef HAVE_GETRUSAGE
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return sim_elapsed_time_get () - start;
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#else
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#ifdef HAVE_TIME
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return (sim_elapsed_time_get () - start) * 1000;
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#else
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return 0;
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#endif
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#endif
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}
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