mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 19:53:32 +08:00
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
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/* Smoke test for mallinfo2
|
|
Copyright (C) 2020-2022 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/>. */
|
|
|
|
/* Test that mallinfo2 is properly exported and basically works. */
|
|
|
|
#include <array_length.h>
|
|
#include <malloc.h>
|
|
#include <stdlib.h>
|
|
#include <support/check.h>
|
|
|
|
/* This is not specifically needed for the test, but (1) does
|
|
something to the data so gcc doesn't optimize it away, and (2) may
|
|
help when developing future tests. */
|
|
static void
|
|
print_mi (const char *msg, struct mallinfo2 *m)
|
|
{
|
|
printf("\n%s...\n", msg);
|
|
#define P(f) printf("%s: %zu\n", #f, m->f)
|
|
P(arena);
|
|
P(ordblks);
|
|
P(smblks);
|
|
P(hblks);
|
|
P(hblkhd);
|
|
P(usmblks);
|
|
P(fsmblks);
|
|
P(uordblks);
|
|
P(fordblks);
|
|
P(keepcost);
|
|
}
|
|
|
|
/* We do this to force the call to malloc to not be optimized
|
|
away. */
|
|
volatile void *ptr;
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct mallinfo2 mi1, mi2;
|
|
int i;
|
|
size_t total = 0;
|
|
|
|
/* This is the key difference between mallinfo() and mallinfo2().
|
|
It may be a false positive if int and size_t are the same
|
|
size. */
|
|
TEST_COMPARE (sizeof (mi1.arena), sizeof (size_t));
|
|
|
|
mi1 = mallinfo2 ();
|
|
print_mi ("before", &mi1);
|
|
|
|
/* Allocations that are meaningful-sized but not so large as to be
|
|
mmapped, so that they're all accounted for in the field we test
|
|
below. */
|
|
for (i = 1; i < 20; ++i)
|
|
{
|
|
ptr = malloc (160 * i);
|
|
total += 160 * i;
|
|
}
|
|
|
|
mi2 = mallinfo2 ();
|
|
print_mi ("after", &mi2);
|
|
|
|
/* Check at least something changed. */
|
|
TEST_VERIFY (mi2.uordblks >= mi1.uordblks + total);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|