/* Copyright 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Alexandre Oliva . Based on ../i386/socket.S. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #define P(a, b) P2(a, b) #define P2(a, b) a##b .text /* The socket-oriented system calls are handled unusally in Linux. They are all gated through the single `socketcall' system call number. `socketcall' takes two arguments: the first is the subcode, specifying which socket function is being called; and the second is a pointer to the arguments to the specific function. The .S files for the other calls just #define socket and #include this. */ #ifndef __socket #ifndef NO_WEAK_ALIAS #define __socket P(__,socket) #else #define __socket socket #endif #endif .globl __socket ENTRY (__socket) mov d0,(4,sp) mov d1,(8,sp) mov SYS_ify(socketcall),d0 /* System call number in d0. */ /* Use ## so `socket' is a separate token that might be #define'd. */ mov P(SOCKOP_,socket),a0 /* Subcode is first arg to syscall. */ mov sp,d1 add 4,d1 /* Address of args is 2nd arg. */ /* Do the system call trap. */ syscall 0 /* d0 is < 0 if there was an error. */ cmp -126,d0 bls L(pseudo_end) jmp SYSCALL_ERROR_LABEL /* Successful; return the syscall's value. */ L(pseudo_end): ret PSEUDO_END (__socket) #ifndef NO_WEAK_ALIAS weak_alias (__socket, socket) #endif