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Call direct system calls for socket operations

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Explicit system calls for the socket operations were added in Linux kernel
in commit 86250b9d12ca for powerpc. This patch make use of those instead of
calling socketcall to save number of cycles on networking syscalls.

2015-08-25  Rajalakshmi Srinivasaraghavan  <raji@linux.vnet.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h: Define new macros.
	* sysdeps/unix/sysv/linux/accept.c: Call direct system call.
	* sysdeps/unix/sysv/linux/bind.c: Call direct system call.
	* sysdeps/unix/sysv/linux/connect.c: Call direct system call.
	* sysdeps/unix/sysv/linux/getpeername.c: Call direct system call.
	* sysdeps/unix/sysv/linux/getsockname.c: Call direct system call.
	* sysdeps/unix/sysv/linux/getsockopt.c: Call direct system call.
	* sysdeps/unix/sysv/linux/listen.c: Call direct system call.
	* sysdeps/unix/sysv/linux/recv.c: Call direct system call.
	* sysdeps/unix/sysv/linux/recvfrom.c: Call direct system call.
	* sysdeps/unix/sysv/linux/recvmsg.c: Call direct system call.
	* sysdeps/unix/sysv/linux/send.c: Call direct system call.
	* sysdeps/unix/sysv/linux/sendmsg.c: Call direct system call.
	* sysdeps/unix/sysv/linux/sendto.c: Call direct system call.
	* sysdeps/unix/sysv/linux/setsockopt.c: Call direct system call.
	* sysdeps/unix/sysv/linux/shutdown.c: Call direct system call.
	* sysdeps/unix/sysv/linux/socket.c: Call direct system call.
	* sysdeps/unix/sysv/linux/socketpair.c: Call direct system call.
This commit is contained in:
Rajalakshmi Srinivasaraghavan
2015-08-25 10:23:47 -03:00
committed by Tulio Magno Quites Machado Filho
parent 18173559a2
commit f4491417cc
19 changed files with 146 additions and 0 deletions
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6
sysdeps/unix/sysv/linux/accept.c
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@ -21,11 +21,17 @@
#include <sysdep-cancel.h>
#include <socketcall.h>
#include <sys/syscall.h>
#include <kernel-features.h>
int
__libc_accept (int fd, __SOCKADDR_ARG addr, socklen_t *len)
{
#ifdef __ASSUME_ACCEPT_SYSCALL
return SYSCALL_CANCEL (accept, fd, addr.__sockaddr__, len);
#else
return SOCKETCALL_CANCEL (accept, fd, addr.__sockaddr__, len);
#endif
}
weak_alias (__libc_accept, accept)
libc_hidden_def (accept)