diff options
| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2015-08-25 10:23:47 -0300 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2015-08-25 13:45:56 -0300 |
| commit | f4491417cc80b4a01e72e9d218af137765ee5918 (patch) | |
| tree | 16c8e1335b1d098af8e16b116fef182c1cf9af2d /sysdeps/unix/sysv/linux/recvmsg.c | |
| parent | 18173559a23e28055640b152e623d9f0d40ecca8 (diff) | |
| download | glibc-f4491417cc80b4a01e72e9d218af137765ee5918.zip glibc-f4491417cc80b4a01e72e9d218af137765ee5918.tar.gz glibc-f4491417cc80b4a01e72e9d218af137765ee5918.tar.bz2 | |
Call direct system calls for socket operations
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.
Diffstat (limited to 'sysdeps/unix/sysv/linux/recvmsg.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/recvmsg.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/recvmsg.c b/sysdeps/unix/sysv/linux/recvmsg.c index cd7c9ca..952a0f2 100644 --- a/sysdeps/unix/sysv/linux/recvmsg.c +++ b/sysdeps/unix/sysv/linux/recvmsg.c @@ -21,11 +21,17 @@ #include <sysdep-cancel.h> #include <socketcall.h> +#include <kernel-features.h> +#include <sys/syscall.h> ssize_t __libc_recvmsg (int fd, struct msghdr *msg, int flags) { +#ifdef __ASSUME_RECVMSG_SYSCALL + return SYSCALL_CANCEL (recvmsg, fd, msg, flags); +#else return SOCKETCALL_CANCEL (recvmsg, fd, msg, flags); +#endif } weak_alias (__libc_recvmsg, recvmsg) weak_alias (__libc_recvmsg, __recvmsg) |