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/recvfrom.c | |
| parent | 18173559a23e28055640b152e623d9f0d40ecca8 (diff) | |
| download | glibc-f4491417cc80b4a01e72e9d218af137765ee5918.tar.gz glibc-f4491417cc80b4a01e72e9d218af137765ee5918.tar.xz glibc-f4491417cc80b4a01e72e9d218af137765ee5918.zip | |
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/recvfrom.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/recvfrom.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/recvfrom.c b/sysdeps/unix/sysv/linux/recvfrom.c index 90eb40d603..19f59a7074 100644 --- a/sysdeps/unix/sysv/linux/recvfrom.c +++ b/sysdeps/unix/sysv/linux/recvfrom.c @@ -21,13 +21,20 @@ #include <sysdep-cancel.h> #include <socketcall.h> +#include <kernel-features.h> +#include <sys/syscall.h> ssize_t __libc_recvfrom (int fd, void *buf, size_t len, int flags, __SOCKADDR_ARG addr, socklen_t *addrlen) { +#ifdef __ASSUME_RECVFROM_SYSCALL + return SYSCALL_CANCEL (recvfrom, fd, buf, len, flags, addr.__sockaddr__, + addrlen); +#else return SOCKETCALL_CANCEL (recvfrom, fd, buf, len, flags, addr.__sockaddr__, addrlen); +#endif } weak_alias (__libc_recvfrom, recvfrom) weak_alias (__libc_recvfrom, __recvfrom) |