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/* trace.c - tracing functions for malloc */
/* Copyright (C) 2001-2020 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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 3 of the License, or
(at your option) any later version.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "imalloc.h"
extern int malloc_trace;
static int _mtrace_verbose = 0;
#ifdef MALLOC_TRACE
extern FILE *_imalloc_fopen PARAMS((char *, char *, char *, char *, size_t));
FILE *_mtrace_fp = NULL;
extern char _malloc_trace_buckets[];
void
mtrace_alloc (tag, mem, size, file, line)
const char *tag;
PTR_T mem;
size_t size;
const char *file;
int line;
{
if (_mtrace_fp == NULL)
_mtrace_fp = stderr;
if (_mtrace_verbose)
fprintf (_mtrace_fp, "alloc: %s: %p (%zu bytes) from '%s:%d'\n",
tag, mem, size, file ? file : "unknown", line);
else
fprintf (_mtrace_fp, "alloc:%p:%zu:%s:%d\n",
mem, size, file ? file : "unknown", line);
}
void
mtrace_free (mem, size, file, line)
PTR_T mem;
int size;
const char *file;
int line;
{
if (_mtrace_fp == NULL)
_mtrace_fp = stderr;
if (_mtrace_verbose)
fprintf (_mtrace_fp, "free: %p (%d bytes) from '%s:%d'\n",
mem, size, file ? file : "unknown", line);
else
fprintf (_mtrace_fp, "free:%p:%d:%s:%d\n",
mem, size, file ? file : "unknown", line);
}
#endif /* MALLOC_TRACE */
int
malloc_set_trace (n)
int n;
{
int old;
old = malloc_trace;
malloc_trace = n;
_mtrace_verbose = (n > 1);
return old;
}
void
malloc_set_tracefp (fp)
FILE *fp;
{
#ifdef MALLOC_TRACE
_mtrace_fp = fp ? fp : stderr;
#endif
}
void
malloc_trace_bin (n)
int n;
{
#ifdef MALLOC_TRACE
_malloc_trace_buckets[n] = 1;
#endif
}
#define TRACEROOT "/var/tmp/maltrace/trace."
void
malloc_set_tracefn (s, fn)
char *s;
char *fn;
{
#ifdef MALLOC_TRACE
FILE *fp;
char defname[sizeof (TRACEROOT) + 64];
fp = _imalloc_fopen (s, fn, TRACEROOT, defname, sizeof (defname));
if (fp)
malloc_set_tracefp (fp);
#endif
}
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