mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
146 lines
3.5 KiB
C
146 lines
3.5 KiB
C
/* Minimal tests to verify libc_malloc_debug.so functionality.
|
|
Copyright (C) 2021-2024 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <malloc.h>
|
|
#include <shlib-compat.h>
|
|
#include <libc-diag.h>
|
|
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
|
|
extern void (*volatile __free_hook) (void *, const void *);
|
|
extern void *(*volatile __malloc_hook)(size_t, const void *);
|
|
extern void *(*volatile __realloc_hook)(void *, size_t, const void *);
|
|
extern void *(*volatile __memalign_hook)(size_t, size_t, const void *);
|
|
|
|
int hook_count, call_count;
|
|
|
|
DIAG_PUSH_NEEDS_COMMENT;
|
|
DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
|
|
|
|
void
|
|
free_called (void *mem, const void *address)
|
|
{
|
|
hook_count++;
|
|
__free_hook = NULL;
|
|
free (mem);
|
|
__free_hook = free_called;
|
|
}
|
|
|
|
void *
|
|
malloc_called (size_t bytes, const void *address)
|
|
{
|
|
hook_count++;
|
|
__malloc_hook = NULL;
|
|
void *mem = malloc (bytes);
|
|
__malloc_hook = malloc_called;
|
|
return mem;
|
|
}
|
|
|
|
void *
|
|
realloc_called (void *oldptr, size_t bytes, const void *address)
|
|
{
|
|
hook_count++;
|
|
__realloc_hook = NULL;
|
|
void *mem = realloc (oldptr, bytes);
|
|
__realloc_hook = realloc_called;
|
|
return mem;
|
|
}
|
|
|
|
void *
|
|
calloc_called (size_t n, size_t size, const void *address)
|
|
{
|
|
hook_count++;
|
|
__malloc_hook = NULL;
|
|
void *mem = calloc (n, size);
|
|
__malloc_hook = malloc_called;
|
|
return mem;
|
|
}
|
|
|
|
void *
|
|
memalign_called (size_t align, size_t size, const void *address)
|
|
{
|
|
hook_count++;
|
|
__memalign_hook = NULL;
|
|
void *mem = memalign (align, size);
|
|
__memalign_hook = memalign_called;
|
|
return mem;
|
|
}
|
|
|
|
static void initialize_hooks (void)
|
|
{
|
|
__free_hook = free_called;
|
|
__malloc_hook = malloc_called;
|
|
__realloc_hook = realloc_called;
|
|
__memalign_hook = memalign_called;
|
|
}
|
|
void (*__malloc_initialize_hook) (void) = initialize_hooks;
|
|
compat_symbol_reference (libc, __malloc_initialize_hook,
|
|
__malloc_initialize_hook, GLIBC_2_0);
|
|
compat_symbol_reference (libc, __free_hook,
|
|
__free_hook, GLIBC_2_0);
|
|
compat_symbol_reference (libc, __malloc_hook,
|
|
__malloc_hook, GLIBC_2_0);
|
|
compat_symbol_reference (libc, __realloc_hook,
|
|
__realloc_hook, GLIBC_2_0);
|
|
compat_symbol_reference (libc, __memalign_hook,
|
|
__memalign_hook, GLIBC_2_0);
|
|
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
void *p;
|
|
p = malloc (0);
|
|
TEST_VERIFY_EXIT (p != NULL);
|
|
call_count++;
|
|
|
|
p = realloc (p, 0);
|
|
TEST_VERIFY_EXIT (p == NULL);
|
|
call_count++;
|
|
|
|
p = calloc (512, 1);
|
|
TEST_VERIFY_EXIT (p != NULL);
|
|
call_count++;
|
|
|
|
free (p);
|
|
call_count++;
|
|
|
|
p = memalign (0x100, 0x100);
|
|
TEST_VERIFY_EXIT (p != NULL);
|
|
call_count++;
|
|
|
|
free (p);
|
|
call_count++;
|
|
|
|
printf ("call_count: %d, hook_count: %d\n", call_count, hook_count);
|
|
|
|
#ifdef HOOKS_ENABLED
|
|
TEST_VERIFY_EXIT (call_count == hook_count);
|
|
#else
|
|
TEST_VERIFY_EXIT (hook_count == 0);
|
|
#endif
|
|
|
|
exit (0);
|
|
}
|
|
|
|
#include <support/test-driver.c>
|