1/* trace.c - tracing functions for malloc */ 2 3/* Copyright (C) 2001-2003 Free Software Foundation, Inc. 4 5 This file is part of GNU Bash, the Bourne Again SHell. 6 7 Bash is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 2, or (at your option) any later 10 version. 11 12 Bash is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License along 18 with Bash; see the file COPYING. If not, write to the Free Software 19 Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ 20#ifdef HAVE_CONFIG_H 21# include <config.h> 22#endif 23 24#include <stdio.h> 25#ifdef HAVE_UNISTD_H 26# include <unistd.h> 27#endif 28 29#include "imalloc.h" 30 31extern int malloc_trace; 32 33static int _mtrace_verbose = 0; 34 35#ifdef MALLOC_TRACE 36 37extern FILE *_imalloc_fopen __P((char *, char *, char *, char *, size_t)); 38 39FILE *_mtrace_fp = NULL; 40extern char _malloc_trace_buckets[]; 41 42void 43mtrace_alloc (tag, mem, size, file, line) 44 const char *tag; 45 PTR_T mem; 46 size_t size; 47 const char *file; 48 int line; 49{ 50 if (_mtrace_fp == NULL) 51 _mtrace_fp = stderr; 52 53 if (_mtrace_verbose) 54 fprintf (_mtrace_fp, "alloc: %s: %p (%d bytes) from '%s:%d'\n", 55 tag, mem, size, file ? file : "unknown", line); 56 else 57 fprintf (_mtrace_fp, "alloc:%p:%d:%s:%d\n", 58 mem, size, file ? file : "unknown", line); 59} 60 61void 62mtrace_free (mem, size, file, line) 63 PTR_T mem; 64 int size; 65 const char *file; 66 int line; 67{ 68 if (_mtrace_fp == NULL) 69 _mtrace_fp = stderr; 70 71 if (_mtrace_verbose) 72 fprintf (_mtrace_fp, "free: %p (%d bytes) from '%s:%d'\n", 73 mem, size, file ? file : "unknown", line); 74 else 75 fprintf (_mtrace_fp, "free:%p:%d:%s:%d\n", 76 mem, size, file ? file : "unknown", line); 77} 78#endif /* MALLOC_TRACE */ 79 80int 81malloc_set_trace (n) 82 int n; 83{ 84 int old; 85 86 old = malloc_trace; 87 malloc_trace = n; 88 _mtrace_verbose = (n > 1); 89 return old; 90} 91 92void 93malloc_set_tracefp (fp) 94 FILE *fp; 95{ 96#ifdef MALLOC_TRACE 97 _mtrace_fp = fp ? fp : stderr; 98#endif 99} 100 101void 102malloc_trace_bin (n) 103 int n; 104{ 105#ifdef MALLOC_TRACE 106 _malloc_trace_buckets[n] = 1; 107#endif 108} 109 110#define TRACEROOT "/var/tmp/maltrace/trace." 111 112void 113malloc_set_tracefn (s, fn) 114 char *s; 115 char *fn; 116{ 117#ifdef MALLOC_TRACE 118 FILE *fp; 119 char defname[sizeof (TRACEROOT) + 64]; 120 121 fp = _imalloc_fopen (s, fn, TRACEROOT, defname, sizeof (defname)); 122 if (fp) 123 malloc_set_tracefp (fp); 124#endif 125} 126