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* string/Makefile (strop-tests): Add memmem.

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* string/test-memmem.c: New file.
	* string/test-string.h (BUF1PAGES): Define to 1 if undefined.
	(test_init): Size buf1 according to BUF1PAGES.

	* stdio-common/scanf16.c: New file.
	* stdio-common/scanf17.c: New file.
	* scripts/data/localplt-sparc64-linux-gnu.data: New file.
This commit is contained in:
Ulrich Drepper 2008-05-25 00:17:34 +00:00
parent b5ba2c790c
commit f63abf584c
4 changed files with 204 additions and 8 deletions
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13
ChangeLog
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@ -1,3 +1,10 @@
2008-05-24 Ulrich Drepper <drepper@redhat.com>
* string/Makefile (strop-tests): Add memmem.
* string/test-memmem.c: New file.
* string/test-string.h (BUF1PAGES): Define to 1 if undefined.
(test_init): Size buf1 according to BUF1PAGES.
2008-05-24 Jakub Jelinek <jakub@redhat.com>
* libio/stdio.h (vscanf): Fix -std=c99 redirect.
@ -5,8 +12,8 @@
(CFLAGS-scanf17.c): New.
* stdio-common/scanf14.c (main): Add fscanf and scanf tests.
* stdio-common/scanf15.c (main): Likewise.
* stdio-common/scanf16.c: New test.
* stdio-common/scanf17.c: New test.
* stdio-common/scanf16.c: New file.
* stdio-common/scanf17.c: New file.
2008-05-24 Ulrich Drepper <drepper@redhat.com>
@ -52,7 +59,7 @@
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
(__SYSCALL_CLOBBERS): Likewise.
* scripts/data/localplt-sparc-linux-gnu.data: New file.
* scripts/data/localplt-sparc64-linux-gnu.data: Likewise.
* scripts/data/localplt-sparc64-linux-gnu.data: New file.
2008-05-21 Jakub Jelinek <jakub@redhat.com>

2
string/Makefile
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@ -48,7 +48,7 @@ o-objects.ob := memcpy.o memset.o memchr.o
strop-tests := memchr memcmp memcpy memmove mempcpy memset memccpy \
stpcpy stpncpy strcat strchr strcmp strcpy strcspn \
strlen strncmp strncpy strpbrk strrchr strspn
strlen strncmp strncpy strpbrk strrchr strspn memmem
tests := tester inl-tester noinl-tester testcopy test-ffs \
tst-strlen stratcliff tst-svc tst-inlcall \
bug-strncat1 bug-strspn1 bug-strpbrk1 tst-bswap \

185
string/test-memmem.c Normal file
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@ -0,0 +1,185 @@
/* Test and measure memmem functions.
Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Ulrich Drepper <drepper@redhat.com>, 2008.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#define TEST_MAIN
#define BUF1PAGES 20
#define ITERATIONS 500
#include "test-string.h"
typedef char *(*proto_t) (const void *, size_t, const void *, size_t);
void *simple_memmem (const void *, size_t, const void *, size_t);
IMPL (simple_memmem, 0)
IMPL (memmem, 1)
void *
simple_memmem (const void *haystack, size_t haystack_len, const void *needle,
size_t needle_len)
{
const char *begin;
const char *const last_possible
= (const char *) haystack + haystack_len - needle_len;
if (needle_len == 0)
/* The first occurrence of the empty string is deemed to occur at
the beginning of the string. */
return (void *) haystack;
/* Sanity check, otherwise the loop might search through the whole
memory. */
if (__builtin_expect (haystack_len < needle_len, 0))
return NULL;
for (begin = (const char *) haystack; begin <= last_possible; ++begin)
if (begin[0] == ((const char *) needle)[0] &&
!memcmp ((const void *) &begin[1],
(const void *) ((const char *) needle + 1),
needle_len - 1))
return (void *) begin;
return NULL;
}
static void
do_one_test (impl_t *impl, const void *haystack, size_t haystack_len,
const void *needle, size_t needle_len, const void *expected)
{
void *res;
res = CALL (impl, haystack, haystack_len, needle, needle_len);
if (res != expected)
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,
res, expected);
ret = 1;
return;
}
if (HP_TIMING_AVAIL)
{
hp_timing_t start __attribute ((unused));
hp_timing_t stop __attribute ((unused));
hp_timing_t best_time = ~ (hp_timing_t) 0;
size_t i;
for (i = 0; i < 32; ++i)
{
HP_TIMING_NOW (start);
CALL (impl, haystack, haystack_len, needle, needle_len);
HP_TIMING_NOW (stop);
HP_TIMING_BEST (best_time, start, stop);
}
printf ("\t%zd", (size_t) best_time);
}
}
static void
do_test (const char *str, size_t len, size_t idx)
{
char tmpbuf[len];
memcpy (tmpbuf, buf1 + idx, len);
memcpy (buf1 + idx, str, len);
if (HP_TIMING_AVAIL)
printf ("String %s, offset %zd:", str, idx);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, buf1, BUF1PAGES * page_size, str, len, buf1 + idx);
memcpy (buf1 + idx, tmpbuf, len);
if (HP_TIMING_AVAIL)
putchar ('\n');
}
static void
do_random_tests (void)
{
for (size_t n = 0; n < ITERATIONS; ++n)
{
char tmpbuf[32];
size_t shift = random () % 11;
size_t rel = random () % ((2 << (shift + 1)) * 64);
size_t idx = MIN ((2 << shift) * 64 + rel, BUF1PAGES * page_size - 2);
size_t len = random () % (sizeof (tmpbuf) - 1) + 1;
len = MIN (len, BUF1PAGES * page_size - idx - 1);
memcpy (tmpbuf, buf1 + idx, len);
for (size_t i = random () % len / 2 + 1; i > 0; --i)
{
size_t off = random () % len;
char ch = '0' + random () % 10;
buf1[idx + off] = ch;
}
if (HP_TIMING_AVAIL)
printf ("String %.*s, offset %zd:", (int) len, buf1 + idx, idx);
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, buf1, BUF1PAGES * page_size, buf1 + idx, len,
buf1 + idx);
if (HP_TIMING_AVAIL)
putchar ('\n');
memcpy (buf1 + idx, tmpbuf, len);
}
}
static const char *const strs[] =
{
"00000", "00112233", "0123456789", "0000111100001111",
"00000111110000022222", "012345678901234567890",
"abc0", "aaaa0", "abcabc0"
};
int
test_main (void)
{
size_t i;
test_init ();
printf ("%23s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
for (i = 0; i < BUF1PAGES * page_size; ++i)
buf1[i] = 60 + random () % 32;
for (i = 0; i < sizeof (strs) / sizeof (strs[0]); ++i)
for (size_t j = 0; j < 120; j += 7)
{
size_t len = strlen (strs[i]);
do_test (strs[i], len, j);
}
do_random_tests ();
return ret;
}
#include "../test-skeleton.c"

12
string/test-string.h
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@ -1,5 +1,5 @@
/* Test and measure string and memory functions.
Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc.
Copyright (C) 1999, 2002, 2004, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Jakub Jelinek <jakub@redhat.com>, 1999.
@ -118,6 +118,10 @@ size_t iterations = 100000;
} \
while (0)
#ifndef BUF1PAGES
# define BUF1PAGES 1
#endif
static void
test_init (void)
{
@ -126,11 +130,11 @@ test_init (void)
if (page_size < MIN_PAGE_SIZE)
page_size = MIN_PAGE_SIZE;
#endif
buf1 = mmap (0, 2 * page_size, PROT_READ | PROT_WRITE,
buf1 = mmap (0, (BUF1PAGES + 1) * page_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (buf1 == MAP_FAILED)
error (EXIT_FAILURE, errno, "mmap failed");
if (mprotect (buf1 + page_size, page_size, PROT_NONE))
if (mprotect (buf1 + BUF1PAGES * page_size, page_size, PROT_NONE))
error (EXIT_FAILURE, errno, "mprotect failed");
buf2 = mmap (0, 2 * page_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
@ -145,7 +149,7 @@ test_init (void)
srandom (seed);
}
memset (buf1, 0xa5, page_size);
memset (buf1, 0xa5, BUF1PAGES * page_size);
memset (buf2, 0x5a, page_size);
}