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Consolidate posix_fallocate{64} implementations

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This patch consolidates all the posix_fallocate{64} implementation for Linux
in only one (sysdeps/unix/sysv/linux/posix_fallocate{64}.c).  It also removes
the syscall from the auto-generation using assembly macros.

The macro SYSCALL_LL{64} is used to handle the offset argument along with
the new INTERNAL_SYSCALL_CALL macro to define correct argument count for
internal INTERNAL_SYSCALL call.

Tested on x86_64, i686, x32, aarch64, ppc64le, and armhf.

	* io/Makefile (tests): Add tst-posix_fallocate and
	tst-posix_fallocate64.
	* io/tst-posix_fallocate-common.c: New file.
	* io/tst-posix_fallocate.c: Likewise.
	* io/tst-posix_fallocate64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate.c: Remove
	file.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate64.c:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate64.c:
	Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate64.c: Likewise.
	* sysdeps/unix/sysv/linux/posix_fallocate.c (posix_fallocate): Use
	SYSCALL_LL to pass both offset and len arguments.
	* sysdeps/unix/sysv/linux/posix_fallocate64.c (posix_fallocate64):
	Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list (pwrite64): Add
	__libc_pwrite64 alias used by posix_fallocate64.
This commit is contained in:
Adhemerval Zanella 2016-08-19 11:18:40 -03:00
parent 6c63e2d8df
commit 45ff2bfcb3
14 changed files with 199 additions and 224 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
ChangeLog
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@ -1,5 +1,42 @@
2016-10-07 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* io/Makefile (tests): Add tst-posix_fallocate and
tst-posix_fallocate64.
* io/tst-posix_fallocate-common.c: New file.
* io/tst-posix_fallocate.c: Likewise.
* io/tst-posix_fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate.c: Remove
file.
* sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate64.c:
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate64.c:
Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/posix_fallocate.c (posix_fallocate): Use
SYSCALL_LL to pass both offset and len arguments.
* sysdeps/unix/sysv/linux/posix_fallocate64.c (posix_fallocate64):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list (pwrite64): Add
__libc_pwrite64 alias used by posix_fallocate64.
* sysdeps/unix/sysv/linux/Makefile (test): Add tst-fallocate and
tst-fallocate64.
* sysdeps/unix/sysv/linux/tst-fallocate.c: New file.
* sysdeps/unix/sysv/linux/tst-fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/tst-fallocate-common.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/fallocate.c: Remove file.
* sysdeps/unix/sysv/linux/mips/mips64/n32/fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/fallocate.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/fallocate64.c: Likewise.
* sysdeps/unix/sysv/linux/fallocate.c (fallocate): Use SYSCALL_LL
macro on offset argument.
* sysdeps/unix/sysv/linux/fallocate64.c (fallocate64): Use
SYSCALL_LL64 on offset argument.
* sysdeps/unix/sysv/linux/Makefile (test): Add tst-fallocate and
tst-fallocate64.
* sysdeps/unix/sysv/linux/tst-fallocate.c: New file.

4
io/Makefile
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@ -71,8 +71,8 @@ tests := test-utime test-stat test-stat2 test-lfs tst-getcwd \
tst-renameat tst-fchownat tst-fchmodat tst-faccessat \
tst-symlinkat tst-linkat tst-readlinkat tst-mkdirat \
tst-mknodat tst-mkfifoat tst-ttyname_r bug-ftw5 \
tst-posix_fallocate tst-fts tst-fts-lfs \
tst-open-tmpfile
tst-posix_fallocate tst-posix_fallocate64 \
tst-fts tst-fts-lfs tst-open-tmpfile
ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)ftwtest.out

85
io/tst-posix_fallocate-common.c Normal file
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@ -0,0 +1,85 @@
/* Common posix_fallocate tests definitions.
Copyright (C) 2016 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
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
static void do_prepare (void);
#define PREPARE(argc, argv) do_prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#define TIMEOUT 20 /* sec. */
#include <test-skeleton.c>
static char *temp_filename;
static int temp_fd;
static void
do_prepare (void)
{
temp_fd = create_temp_file ("tst-posix_fallocate.", &temp_filename);
if (temp_fd == -1)
FAIL_EXIT1 ("cannot create temporary file: %m\n");
}
#define FAIL(str) \
do { printf ("error: %s (line %d)\n", str, __LINE__); return 1; } while (0)
static int
do_test_with_offset (off_t offset)
{
struct stat st;
if (posix_fallocate (temp_fd, offset, 768) != 0)
FAIL_EXIT1 ("1st posix_fallocate call failed");
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("2nd fstat failed");
if (st.st_size != (offset + 768))
FAIL_EXIT1 ("file size after first posix_fallocate call is %lu, "
"expected %lu",
(unsigned long int) st.st_size, 512lu + 768lu);
if (posix_fallocate (temp_fd, 0, 1024) != 0)
FAIL_EXIT1 ("2nd posix_fallocate call failed");
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("3rd fstat failed");
if (st.st_size != (offset) + 768)
FAIL_EXIT1 ("file size changed in second posix_fallocate");
offset += 2048;
if (posix_fallocate (temp_fd, offset, 64) != 0)
FAIL_EXIT1 ("3rd posix_fallocate call failed");
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("4th fstat failed");
if (st.st_size != (offset + 64))
FAIL_EXIT1 ("file size after first posix_fallocate call is %llu, "
"expected %u",
(unsigned long long int) st.st_size, 2048u + 64u);
return 0;
}

107
io/tst-posix_fallocate.c
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@ -1,100 +1,33 @@
#include <fcntl.h>
#include <sys/stat.h>
/* Basic posix_fallocate tests.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
static void do_prepare (void);
#define PREPARE(argc, argv) do_prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include <test-skeleton.c>
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.
static int fd;
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.
static void
do_prepare (void)
{
fd = create_temp_file ("tst-posix_fallocate.", NULL);
if (fd == -1)
{
printf ("cannot create temporary file: %m\n");
exit (1);
}
}
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include "tst-posix_fallocate-common.c"
static int
do_test (void)
{
struct stat64 st;
struct stat st;
if (fstat64 (fd, &st) != 0)
{
puts ("1st fstat failed");
return 1;
}
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("1st fstat failed");
if (st.st_size != 0)
{
puts ("file not created with size 0");
return 1;
}
FAIL_EXIT1 ("file not created with size 0");
if (posix_fallocate (fd, 512, 768) != 0)
{
puts ("1st posix_fallocate call failed");
return 1;
}
if (fstat64 (fd, &st) != 0)
{
puts ("2nd fstat failed");
return 1;
}
if (st.st_size != 512 + 768)
{
printf ("file size after first posix_fallocate call is %llu, expected %u\n",
(unsigned long long int) st.st_size, 512u + 768u);
return 1;
}
if (posix_fallocate (fd, 0, 1024) != 0)
{
puts ("2nd posix_fallocate call failed");
return 1;
}
if (fstat64 (fd, &st) != 0)
{
puts ("3rd fstat failed");
return 1;
}
if (st.st_size != 512 + 768)
{
puts ("file size changed in second posix_fallocate");
return 1;
}
if (posix_fallocate (fd, 2048, 64) != 0)
{
puts ("3rd posix_fallocate call failed");
return 1;
}
if (fstat64 (fd, &st) != 0)
{
puts ("4th fstat failed");
return 1;
}
if (st.st_size != 2048 + 64)
{
printf ("file size after first posix_fallocate call is %llu, expected %u\n",
(unsigned long long int) st.st_size, 2048u + 64u);
return 1;
}
close (fd);
return 0;
return do_test_with_offset (512);
}

44
io/tst-posix_fallocate64.c Normal file
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@ -0,0 +1,44 @@
/* Basic posix_fallocate tests (with _FILE_OFFSET_BITS).
Copyright (C) 2016 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
<http://www.gnu.org/licenses/>. */
#define _FILE_OFFSET_BITS 64
#include "tst-posix_fallocate-common.c"
static int
do_test (void)
{
struct stat st;
int ret;
if (fstat (temp_fd, &st) != 0)
FAIL_EXIT1 ("1st fstat failed");
if (st.st_size != 0)
FAIL_EXIT1 ("file not created with size 0");
ret = do_test_with_offset (512);
if (ret == 1)
return 1;
off_t base_offset = UINT32_MAX + 512LL;
ret = do_test_with_offset (base_offset);
if (ret == 1)
return 1;
return 0;
}

37
sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate.c
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@ -1,37 +0,0 @@
/* Copyright (C) 2007-2016 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
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <sysdep.h>
#define posix_fallocate static internal_fallocate
#include <sysdeps/posix/posix_fallocate.c>
#undef posix_fallocate
/* Reserve storage for the data of the file associated with FD. */
int
posix_fallocate (int fd, __off_t offset, __off_t len)
{
INTERNAL_SYSCALL_DECL (err);
int res = INTERNAL_SYSCALL (fallocate, err, 4, fd, 0, offset, len);
if (! INTERNAL_SYSCALL_ERROR_P (res, err))
return 0;
if (INTERNAL_SYSCALL_ERRNO (res, err) != EOPNOTSUPP)
return INTERNAL_SYSCALL_ERRNO (res, err);
return internal_fallocate (fd, offset, len);
}

38
sysdeps/unix/sysv/linux/mips/mips64/n32/posix_fallocate64.c
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@ -1,38 +0,0 @@
/* Copyright (C) 2007-2016 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
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <sysdep.h>
extern int __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len);
#define __posix_fallocate64_l64 static internal_fallocate64
#include <sysdeps/posix/posix_fallocate64.c>
#undef __posix_fallocate64_l64
/* Reserve storage for the data of the file associated with FD. */
int
__posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
{
INTERNAL_SYSCALL_DECL (err);
int res = INTERNAL_SYSCALL (fallocate, err, 4, fd, 0, offset, len);
if (! INTERNAL_SYSCALL_ERROR_P (res, err))
return 0;
if (INTERNAL_SYSCALL_ERRNO (res, err) != EOPNOTSUPP)
return INTERNAL_SYSCALL_ERRNO (res, err);
return internal_fallocate64 (fd, offset, len);
}

1
sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate.c
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@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c>

1
sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate64.c
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@ -1 +0,0 @@
/* posix_fallocate64 is in posix_fallocate.c */

6
sysdeps/unix/sysv/linux/posix_fallocate.c
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@ -27,10 +27,8 @@ int
posix_fallocate (int fd, __off_t offset, __off_t len)
{
INTERNAL_SYSCALL_DECL (err);
int res = INTERNAL_SYSCALL (fallocate, err, 6, fd, 0,
__LONG_LONG_PAIR (offset >> 31, offset),
__LONG_LONG_PAIR (len >> 31, len));
int res = INTERNAL_SYSCALL_CALL (fallocate, err, fd, 0,
SYSCALL_LL (offset), SYSCALL_LL (len));
if (! INTERNAL_SYSCALL_ERROR_P (res, err))
return 0;
if (INTERNAL_SYSCALL_ERRNO (res, err) != EOPNOTSUPP)

14
sysdeps/unix/sysv/linux/posix_fallocate64.c
View File

@ -28,12 +28,14 @@ int
__posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
{
INTERNAL_SYSCALL_DECL (err);
int res = INTERNAL_SYSCALL (fallocate, err, 6, fd, 0,
__LONG_LONG_PAIR ((long int) (offset >> 32),
(long int) offset),
__LONG_LONG_PAIR ((long int) (len >> 32),
(long int) len));
#ifdef INTERNAL_SYSCALL_TYPES
int res = INTERNAL_SYSCALL_TYPES (fallocate, err, 4, int, fd,
int, 0, off_t, offset,
off_t, len);
#else
int res = INTERNAL_SYSCALL_CALL (fallocate, err, fd, 0,
SYSCALL_LL64 (offset), SYSCALL_LL64 (len));
#endif
if (! INTERNAL_SYSCALL_ERROR_P (res, err))
return 0;
if (INTERNAL_SYSCALL_ERRNO (res, err) != EOPNOTSUPP)

46
sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c
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@ -1,46 +0,0 @@
/* Copyright (C) 2007-2016 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
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <sysdep.h>
#define posix_fallocate static internal_fallocate
#include <sysdeps/posix/posix_fallocate.c>
#undef posix_fallocate
/* Reserve storage for the data of the file associated with FD. */
int
posix_fallocate (int fd, __off_t offset, __off_t len)
{
INTERNAL_SYSCALL_DECL (err);
#ifdef INTERNAL_SYSCALL_TYPES
int res = INTERNAL_SYSCALL_TYPES (fallocate, err, 4, int, fd,
int, 0, off_t, offset,
off_t, len);
#else
int res = INTERNAL_SYSCALL (fallocate, err, 4, fd, 0, offset, len);
#endif
if (! INTERNAL_SYSCALL_ERROR_P (res, err))
return 0;
if (INTERNAL_SYSCALL_ERRNO (res, err) != EOPNOTSUPP)
return INTERNAL_SYSCALL_ERRNO (res, err);
return internal_fallocate (fd, offset, len);
}
weak_alias (posix_fallocate, posix_fallocate64)

1
sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate64.c
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@ -1 +0,0 @@
/* posix_fallocate64 is in posix_fallocate.c */

2
sysdeps/unix/sysv/linux/x86_64/syscalls.list
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@ -8,7 +8,7 @@ msgrcv - msgrcv Ci:ibnii __msgrcv msgrcv
msgsnd - msgsnd Ci:ibni __msgsnd msgsnd
pread64 - pread64 Ci:ipii __libc_pread __libc_pread64 __pread64 pread64 __pread pread
preadv64 - preadv Ci:ipii preadv64 preadv
pwrite64 - pwrite64 Ci:ipii __libc_pwrite __pwrite64 pwrite64 __pwrite pwrite
pwrite64 - pwrite64 Ci:ipii __libc_pwrite __libc_pwrite64 __pwrite64 pwrite64 __pwrite pwrite
pwritev64 - pwritev Ci:ipii pwritev64 pwritev
shmat - shmat i:ipi __shmat shmat
shmctl - shmctl i:iip __shmctl shmctl