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author | H.J. Lu <hjl.tools@gmail.com> | 2020-04-29 13:20:27 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2020-04-29 13:20:27 -0700 |
commit | ad9fd65d716f1ccd757b6b2feeee826d0f187ed4 (patch) | |
tree | eb570c463fc835feb7b7a6a0a666eacb5b5a73d2 /sysdeps | |
parent | 07fe93cd9850696f3f13a8fd0d0f7c37e3fe7f37 (diff) | |
download | glibc-ad9fd65d716f1ccd757b6b2feeee826d0f187ed4.tar.gz glibc-ad9fd65d716f1ccd757b6b2feeee826d0f187ed4.tar.xz glibc-ad9fd65d716f1ccd757b6b2feeee826d0f187ed4.zip |
Add C wrappers for process_vm_readv/process_vm_writev [BZ #25810]
Since the the U marker can only be applied to 2 unsigned long arguments in syscalls.list files, add a C wrapper for process_vm_readv and process_vm_writev syscals which have more than 2 unsigned long arguments.
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 3 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/process_vm_readv.c | 32 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/process_vm_writev.c | 32 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/syscalls.list | 2 |
4 files changed, 66 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 434b008a91..db78eeadd1 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -59,7 +59,8 @@ sysdep_routines += adjtimex clone umount umount2 readahead sysctl \ eventfd eventfd_read eventfd_write prlimit \ personality epoll_wait tee vmsplice splice \ open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get \ - timerfd_gettime timerfd_settime + timerfd_gettime timerfd_settime \ + process_vm_readv process_vm_writev CFLAGS-gethostid.c = -fexceptions CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables diff --git a/sysdeps/unix/sysv/linux/process_vm_readv.c b/sysdeps/unix/sysv/linux/process_vm_readv.c new file mode 100644 index 0000000000..e1377f7e50 --- /dev/null +++ b/sysdeps/unix/sysv/linux/process_vm_readv.c @@ -0,0 +1,32 @@ +/* process_vm_readv - Linux specific syscall. + Copyright (C) 2020 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 + <https://www.gnu.org/licenses/>. */ + +#include <unistd.h> +#include <sysdep.h> +#include <errno.h> +#include <sys/uio.h> + +ssize_t +process_vm_readv (pid_t pid, const struct iovec *local_iov, + unsigned long int liovcnt, + const struct iovec *remote_iov, + unsigned long int riovcnt, unsigned long int flags) +{ + return INLINE_SYSCALL_CALL (process_vm_readv, pid, local_iov, + liovcnt, remote_iov, riovcnt, flags); +} diff --git a/sysdeps/unix/sysv/linux/process_vm_writev.c b/sysdeps/unix/sysv/linux/process_vm_writev.c new file mode 100644 index 0000000000..944ab9b7f1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/process_vm_writev.c @@ -0,0 +1,32 @@ +/* process_vm_writev - Linux specific syscall. + Copyright (C) 2020 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 + <https://www.gnu.org/licenses/>. */ + +#include <unistd.h> +#include <sysdep.h> +#include <errno.h> +#include <sys/uio.h> + +ssize_t +process_vm_writev (pid_t pid, const struct iovec *local_iov, + unsigned long int liovcnt, + const struct iovec *remote_iov, + unsigned long int riovcnt, unsigned long int flags) +{ + return INLINE_SYSCALL_CALL (process_vm_writev, pid, local_iov, + liovcnt, remote_iov, riovcnt, flags); +} diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index 5b4e205934..ced77d49fa 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -98,8 +98,6 @@ name_to_handle_at EXTRA name_to_handle_at i:isppi name_to_handle_at setns EXTRA setns i:ii setns -process_vm_readv EXTRA process_vm_readv i:ipipii process_vm_readv -process_vm_writev EXTRA process_vm_writev i:ipipii process_vm_writev memfd_create EXTRA memfd_create i:si memfd_create pkey_alloc EXTRA pkey_alloc i:ii pkey_alloc pkey_free EXTRA pkey_free i:i pkey_free |