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/* Emulate Emacs heap dumping to test malloc_set_state.
Copyright (C) 2001-2026 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 <errno.h>
#include <stdio.h>
#include <string.h>
#include <libc-symbols.h>
#include <shlib-compat.h>
#include <support/check.h>
#include <support/support.h>
#include <support/test-driver.h>
#include "malloc.h"
/* Make the compatibility symbols availabile to this test case. */
void *malloc_get_state (void);
compat_symbol_reference (libc, malloc_get_state, malloc_get_state, GLIBC_2_0);
int malloc_set_state (void *);
compat_symbol_reference (libc, malloc_set_state, malloc_set_state, GLIBC_2_0);
#define NBINS 128
static struct
{
long magic;
long version;
void *av[NBINS * 2 + 2];
char *sbrk_base;
int sbrked_mem_bytes;
unsigned long trim_threshold;
unsigned long top_pad;
unsigned int n_mmaps_max;
unsigned long mmap_threshold;
int check_action;
unsigned long max_sbrked_mem;
unsigned long max_total_mem;
unsigned int n_mmaps;
unsigned int max_n_mmaps;
unsigned long mmapped_mem;
unsigned long max_mmapped_mem;
int using_malloc_checking;
unsigned long max_fast;
unsigned long arena_test;
unsigned long arena_max;
unsigned long narenas;
} save_state;
static int
do_test (void)
{
/* Check the dummy implementations always fail. */
TEST_VERIFY_EXIT (malloc_set_state (&save_state) == -1);
errno = 0;
TEST_VERIFY_EXIT (malloc_get_state () == NULL);
TEST_VERIFY_EXIT (errno == ENOSYS);
return 0;
}
#include <support/test-driver.c>
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