mirror of https://github.com/mkerrisk/man-pages
45 lines
991 B
Groff
45 lines
991 B
Groff
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
|
|
.\" Distributed under GPL
|
|
.\" the glibc-info pages are very helpful here
|
|
.TH MTRACE 3 2002-07-20 "GNU" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
mtrace, muntrace \- malloc debugging
|
|
.SH SYNOPSIS
|
|
.sp
|
|
.B "#include <mcheck.h>"
|
|
.sp
|
|
.B "void mtrace(void);"
|
|
.sp
|
|
.B "void muntrace(void);"
|
|
.SH DESCRIPTION
|
|
The function
|
|
.BR mtrace ()
|
|
installs handlers for
|
|
.BR malloc (3),
|
|
.BR realloc (3)
|
|
and
|
|
.BR free (3).
|
|
The function
|
|
.BR muntrace ()
|
|
disables these handlers.
|
|
.br
|
|
The environment variable
|
|
.B MALLOC_TRACE
|
|
defines a file where
|
|
.BR mtrace ()
|
|
writes its output.
|
|
This file must be writable to the user or
|
|
.BR mtrace ()
|
|
will do nothing.
|
|
If the file is not empty it will be truncated.
|
|
.SH "CONFORMING TO"
|
|
These are GNU extensions.
|
|
.SH NOTES
|
|
The output of
|
|
.BR mtrace ()
|
|
will be ASCII but not in a friendly format.
|
|
So glibc comes with a perl-script called mtrace to make sense of it.
|
|
.SH "SEE ALSO"
|
|
.BR malloc (3),
|
|
.BR malloc_hook (3)
|