path: root/malloc/memusage.c

/* Profile heap and stack memory usage of running program.
   Copyright (C) 1998-2023 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <assert.h>
#include <dlfcn.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <libintl.h>
#include <stdatomic.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <unistd.h>
#include <unistd_ext.h>

#include <hp-timing.h>
#include <machine-sp.h>
#include <stackinfo.h>  /* For _STACK_GROWS_UP  */

/* Pointer to the real functions.  These are determined used `dlsym'
   when really needed.  */
static void *(*mallocp)(size_t);
static void *(*