glibc/sysdeps/x86_64/tst-rsi-strlen.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
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
2022-01-01 11:40:24 -08:00

82 lines
1.8 KiB
C

/* Test strlen with 0 in the RSI register.
Copyright (C) 2021-2022 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/>. */
#ifdef WIDE
# define TEST_NAME "wcslen"
#else
# define TEST_NAME "strlen"
#endif /* WIDE */
#define TEST_MAIN
#include <string/test-string.h>
#ifdef WIDE
# include <wchar.h>
# define STRLEN wcslen
# define CHAR wchar_t
#else
# define STRLEN strlen
# define CHAR char
#endif /* WIDE */
IMPL (STRLEN, 1)
typedef size_t (*proto_t) (const CHAR *);
typedef struct
{
void (*fn) (void);
} parameter_t;
size_t
__attribute__ ((weak, noinline, noclone))
do_strlen (parameter_t *a, int zero, const CHAR *str)
{
return CALL (a, str);
}
static int
test_main (void)
{
test_init ();
size_t size = page_size / sizeof (CHAR) - 1;
CHAR *buf = (CHAR *) buf2;
buf[size] = 0;
parameter_t a;
int ret = 0;
FOR_EACH_IMPL (impl, 0)
{
a.fn = impl->fn;
/* NB: Pass 0 in RSI. */
size_t res = do_strlen (&a, 0, buf);
if (res != size)
{
error (0, 0, "Wrong result in function %s: %zu != %zu",
impl->name, res, size);
ret = 1;
}
}
return ret ? EXIT_FAILURE : EXIT_SUCCESS;
}
#include <support/test-driver.c>