diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/wordsize-64/preadv.c | 73 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/wordsize-64/pwritev.c | 73 |
3 files changed, 149 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 876fc15290..8680123faf 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2012-05-19 H.J. Lu <hongjiu.lu@intel.com> + * sysdeps/unix/sysv/linux/wordsize-64/preadv.c: New file. + * sysdeps/unix/sysv/linux/wordsize-64/pwritev.c: Likewise. + * sysdeps/x86_64/x32/_itoa.h: Add comment. 2012-05-19 Joseph Myers <joseph@codesourcery.com> diff --git a/sysdeps/unix/sysv/linux/wordsize-64/preadv.c b/sysdeps/unix/sysv/linux/wordsize-64/preadv.c new file mode 100644 index 0000000000..e36ca8690c --- /dev/null +++ b/sysdeps/unix/sysv/linux/wordsize-64/preadv.c @@ -0,0 +1,73 @@ +/* 64-bit preadv. + Copyright (C) 2012 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 <errno.h> +#include <stddef.h> +#include <sys/param.h> +/* Hide the preadv64 declaration. */ +#define preadv64 __redirect_preadv64 +#include <sys/uio.h> + +#include <sysdep-cancel.h> +#include <sys/syscall.h> +#include <kernel-features.h> + +#ifndef __ASSUME_PREADV +static ssize_t __atomic_preadv_replacement (int, const struct iovec *, + int, off_t) internal_function; +#endif + +ssize_t +preadv (int fd, const struct iovec *vector, int count, off_t offset) +{ +#ifdef __NR_preadv + ssize_t result; + + if (SINGLE_THREAD_P) + result = INLINE_SYSCALL (preadv, 4, fd, vector, count, offset); + else + { + int oldtype = LIBC_CANCEL_ASYNC (); + + result = INLINE_SYSCALL (preadv, 4, fd, vector, count, offset); + + LIBC_CANCEL_RESET (oldtype); + } +# ifdef __ASSUME_PREADV + return result; +# endif +#endif + +#ifndef __ASSUME_PREADV +# ifdef __NR_preadv + if (result >= 0 || errno != ENOSYS) + return result; +# endif + + return __atomic_preadv_replacement (fd, vector, count, offset); +#endif +} +#undef preadv64 +strong_alias (preadv, preadv64) + +#ifndef __ASSUME_PREADV +# define PREADV static internal_function __atomic_preadv_replacement +# define PREAD __pread +# define OFF_T off_t +# include <sysdeps/posix/preadv.c> +#endif diff --git a/sysdeps/unix/sysv/linux/wordsize-64/pwritev.c b/sysdeps/unix/sysv/linux/wordsize-64/pwritev.c new file mode 100644 index 0000000000..05644dd0a3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/wordsize-64/pwritev.c @@ -0,0 +1,73 @@ +/* 64-bit pwritev. + Copyright (C) 2012 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 <errno.h> +#include <stddef.h> +#include <sys/param.h> +/* Hide the pwritev64 declaration. */ +#define pwritev64 __redirect_pwritev64 +#include <sys/uio.h> + +#include <sysdep-cancel.h> +#include <sys/syscall.h> +#include <kernel-features.h> + +#ifndef __ASSUME_PWRITEV +static ssize_t __atomic_pwritev_replacement (int, const struct iovec *, + int, off_t) internal_function; +#endif + +ssize_t +pwritev (int fd, const struct iovec *vector, int count, off_t offset) +{ +#ifdef __NR_pwritev + ssize_t result; + + if (SINGLE_THREAD_P) + result = INLINE_SYSCALL (pwritev, 4, fd, vector, count, offset); + else + { + int oldtype = LIBC_CANCEL_ASYNC (); + + result = INLINE_SYSCALL (pwritev, 4, fd, vector, count, offset); + + LIBC_CANCEL_RESET (oldtype); + } +# ifdef __ASSUME_PWRITEV + return result; +# endif +#endif + +#ifndef __ASSUME_PWRITEV +# ifdef __NR_pwritev + if (result >= 0 || errno != ENOSYS) + return result; +# endif + + return __atomic_pwritev_replacement (fd, vector, count, offset); +#endif +} +#undef pwritev64 +strong_alias (pwritev, pwritev64) + +#ifndef __ASSUME_PWRITEV +# define PWRITE __pwrite +# define PWRITEV static internal_function __atomic_pwritev_replacement +# define OFF_T off_t +# include <sysdeps/posix/pwritev.c> +#endif |