mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 13:31:13 +00:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
133 lines
2.8 KiB
C
133 lines
2.8 KiB
C
/* Copyright (C) 2000-2022 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 <error.h>
|
|
#include <limits.h>
|
|
#include <malloc.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <libc-diag.h>
|
|
|
|
|
|
/* Number of samples per size. */
|
|
#define N 50000
|
|
|
|
|
|
static void
|
|
fixed_test (int size)
|
|
{
|
|
char *ptrs[N];
|
|
int i;
|
|
|
|
for (i = 0; i < N; ++i)
|
|
{
|
|
int j;
|
|
|
|
ptrs[i] = (char *) calloc (1, size);
|
|
|
|
if (ptrs[i] == NULL)
|
|
break;
|
|
|
|
for (j = 0; j < size; ++j)
|
|
{
|
|
if (ptrs[i][j] != '\0')
|
|
error (EXIT_FAILURE, 0,
|
|
"byte not cleared (size %d, element %d, byte %d)",
|
|
size, i, j);
|
|
ptrs[i][j] = '\xff';
|
|
}
|
|
}
|
|
|
|
while (i-- > 0)
|
|
free (ptrs[i]);
|
|
}
|
|
|
|
|
|
static void
|
|
random_test (void)
|
|
{
|
|
char *ptrs[N];
|
|
int i;
|
|
|
|
for (i = 0; i < N; ++i)
|
|
{
|
|
int j;
|
|
int n = 1 + random () % 10;
|
|
int elem = 1 + random () % 100;
|
|
int size = n * elem;
|
|
|
|
ptrs[i] = (char *) calloc (n, elem);
|
|
|
|
if (ptrs[i] == NULL)
|
|
break;
|
|
|
|
for (j = 0; j < size; ++j)
|
|
{
|
|
if (ptrs[i][j] != '\0')
|
|
error (EXIT_FAILURE, 0,
|
|
"byte not cleared (size %d, element %d, byte %d)",
|
|
size, i, j);
|
|
ptrs[i][j] = '\xff';
|
|
}
|
|
}
|
|
|
|
while (i-- > 0)
|
|
free (ptrs[i]);
|
|
}
|
|
|
|
|
|
static void
|
|
null_test (void)
|
|
{
|
|
/* If the size is 0 the result is implementation defined. Just make
|
|
sure the program doesn't crash. The result of calloc is
|
|
deliberately ignored, so do not warn about that. */
|
|
DIAG_PUSH_NEEDS_COMMENT;
|
|
DIAG_IGNORE_NEEDS_COMMENT (10, "-Wunused-result");
|
|
calloc (0, 0);
|
|
calloc (0, UINT_MAX);
|
|
calloc (UINT_MAX, 0);
|
|
calloc (0, ~((size_t) 0));
|
|
calloc (~((size_t) 0), 0);
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
/* We are allocating blocks with `calloc' and check whether every
|
|
block is completely cleared. We first try this for some fixed
|
|
times and then with random size. */
|
|
fixed_test (15);
|
|
fixed_test (5);
|
|
fixed_test (17);
|
|
fixed_test (6);
|
|
fixed_test (31);
|
|
fixed_test (96);
|
|
|
|
random_test ();
|
|
|
|
null_test ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|