diff options
author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-08-26 10:42:58 -0300 |
---|---|---|
committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-11-09 17:46:11 -0200 |
commit | 87686aeefdf419bc7d02cae25f5b45e9306ba6ff (patch) | |
tree | b5ef6e7117e5ca0c083b210afee0a98839697094 /sysdeps/unix/sysv/linux/arm/ftruncate64.c | |
parent | 5874510faaf3cbd0bb112aaacab9f225002beed1 (diff) | |
download | glibc-87686aeefdf419bc7d02cae25f5b45e9306ba6ff.tar.gz |
Consolidate Linux ftruncate implementations
THis patch consolidates all Linux ftruncate implementation on
sysdeps/unix/sysv/linux/ftruncate{64}.c. It is based on
{INTERNAL,INLINE}_SYSCALL patch [1] to simplify the syscall construction.
General idea is to build ftruncate iff __OFF_T_MATCHES_OFF64_T is not
defined, otherwise ftruncate64 will be build and ftruncate will be an
alias. The fallocate will use old compat syscall and pass 32-bit off_t
argument, while fallocate64 will handle the correct off64_t passing using
__ALIGNMENT_ARG and SYSCALL_LL64 macros.
Tested on x86_64, i386, aarch64, and armhf.
* posix/tst-truncate-common.c: New file.
* posix/tst-truncate.c: Use tst-truncate-common.c.
* posix/tst-truncate64.c: Likewise and add LFS tests.
* sysdeps/unix/sysv/linux/arm/ftruncate64.c: Remove file.
* sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/ftruncate64.c: Likewise.
* sysdeps/unix/sysv/linux/ftruncate.c: New file.
* sysdeps/unix/sysv/linux/ftruncate64.c (__ftruncate64): Use
INLINE_SYSCALL_CALL, __ALIGNMENT_ARG and SYSCALL_LL64 macros.
[__OFF_T_MATCHES_OFF64_T] (ftruncate): Add alias.
* sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (ftruncate):
Remove.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (ftruncate):
Likewise.
[1] https://sourceware.org/ml/libc-alpha/2016-08/msg00646.html
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/ftruncate64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/arm/ftruncate64.c | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/ftruncate64.c b/sysdeps/unix/sysv/linux/arm/ftruncate64.c deleted file mode 100644 index 0e8d8ba408..0000000000 --- a/sysdeps/unix/sysv/linux/arm/ftruncate64.c +++ /dev/null @@ -1,36 +0,0 @@ -/* Copyright (C) 1997-2016 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 <sys/types.h> -#include <errno.h> -#include <endian.h> -#include <unistd.h> - -#include <sysdep.h> -#include <sys/syscall.h> - -/* Truncate the file FD refers to to LENGTH bytes. */ -int -__ftruncate64 (int fd, off64_t length) -{ - unsigned int low = length & 0xffffffff; - unsigned int high = length >> 32; - int result = INLINE_SYSCALL (ftruncate64, 4, fd, 0, - __LONG_LONG_PAIR (high, low)); - return result; -} -weak_alias (__ftruncate64, ftruncate64) |