diff options
Diffstat (limited to 'sysdeps/unix/sysv')
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/Versions | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/not-cancel.h | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/pread64_nocancel.c | 32 |
4 files changed, 39 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 0e09d61a7a..bbab8f8cc3 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -215,8 +215,8 @@ sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \ close_nocancel fcntl_nocancel nanosleep_nocancel \ open_nocancel open64_nocancel \ openat_nocancel openat64_nocancel \ - pause_nocancel read_nocancel waitpid_nocancel \ - write_nocancel statx_cp + pause_nocancel read_nocancel pread64_nocancel \ + waitpid_nocancel write_nocancel statx_cp sysdep_headers += bits/fcntl-linux.h diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions index 1ca102a9e2..d385085c61 100644 --- a/sysdeps/unix/sysv/linux/Versions +++ b/sysdeps/unix/sysv/linux/Versions @@ -182,6 +182,7 @@ libc { __syscall_rt_sigqueueinfo; __open_nocancel; __read_nocancel; + __pread64_nocancel; __close_nocancel; __sigtimedwait; # functions used by nscd diff --git a/sysdeps/unix/sysv/linux/not-cancel.h b/sysdeps/unix/sysv/linux/not-cancel.h index 95da1544b6..041fd00111 100644 --- a/sysdeps/unix/sysv/linux/not-cancel.h +++ b/sysdeps/unix/sysv/linux/not-cancel.h @@ -43,6 +43,9 @@ __typeof (openat64) __openat64_nocancel; /* Non cancellable read syscall. */ __typeof (__read) __read_nocancel; +/* Non cancellable pread syscall (LFS version). */ +__typeof (__pread64) __pread64_nocancel; + /* Uncancelable write. */ __typeof (__write) __write_nocancel; @@ -84,6 +87,7 @@ hidden_proto (__open64_nocancel) hidden_proto (__openat_nocancel) hidden_proto (__openat64_nocancel) hidden_proto (__read_nocancel) +hidden_proto (__pread64_nocancel) hidden_proto (__write_nocancel) hidden_proto (__close_nocancel) hidden_proto (__waitpid_nocancel) diff --git a/sysdeps/unix/sysv/linux/pread64_nocancel.c b/sysdeps/unix/sysv/linux/pread64_nocancel.c new file mode 100644 index 0000000000..dab61260e5 --- /dev/null +++ b/sysdeps/unix/sysv/linux/pread64_nocancel.c @@ -0,0 +1,32 @@ +/* Linux pread64() syscall implementation -- non-cancellable. + Copyright (C) 2019 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 <unistd.h> +#include <sysdep-cancel.h> +#include <not-cancel.h> + +#ifndef __NR_pread64 +# define __NR_pread64 __NR_pread +#endif + +ssize_t +__pread64_nocancel (int fd, void *buf, size_t count, off64_t offset) +{ + return INLINE_SYSCALL_CALL (pread64, fd, buf, count, SYSCALL_LL64_PRW (offset)); +} +hidden_def (__pread64_nocancel) |