mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 09:40:13 +00:00
016495b818
this patch calls direct system calls for socket operations in the same way as power does. The system calls were introduced in kernel commit https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=977108f89c989b1eeb5c8d938e1e71913391eb5f. There are no direct recv, send, accept syscalls available on s390. Thus recvfrom, sendto, accept4 are called instead of the socketcall by defining __ASSUME_*_FOR_*_SYSCALL macros. See recv.c, send.c, accept.c in sysdeps/unix/sysv/linux/ folder. The socketcalls in syscalls.list for s390-64 are removed. They were never used on s390x. ChangeLog: * sysdeps/unix/sysv/linux/s390/kernel-features.h: (__ASSUME_*_SYSCALL) Define new macros. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Remove socketcall syscalls. * sysdeps/unix/sysv/linux/accept.c (__libc_accept): Use accept4 if defined __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL. * sysdeps/unix/sysv/linux/recv.c (__libc_recv): Use recvfrom if defined __ASSUME_RECVFROM_FOR_RECV_SYSCALL. * sysdeps/unix/sysv/linux/send.c (__libc_send): Use sendto if defined __ASSUME_SENDTO_FOR_SEND_SYSCALL.
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* Copyright (C) 2015 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 <signal.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <sysdep-cancel.h>
|
|
#include <socketcall.h>
|
|
#include <kernel-features.h>
|
|
#include <sys/syscall.h>
|
|
|
|
ssize_t
|
|
__libc_send (int fd, const void *buf, size_t len, int flags)
|
|
{
|
|
#ifdef __ASSUME_SEND_SYSCALL
|
|
return SYSCALL_CANCEL (send, fd, buf, len, flags);
|
|
#elif defined __ASSUME_SENDTO_FOR_SEND_SYSCALL
|
|
return SYSCALL_CANCEL (sendto, fd, buf, len, flags, NULL, 0);
|
|
#else
|
|
return SOCKETCALL_CANCEL (send, fd, buf, len, flags);
|
|
#endif
|
|
}
|
|
weak_alias (__libc_send, send)
|
|
weak_alias (__libc_send, __send)
|
|
libc_hidden_def (__send)
|