1 /* Copyright (C) 1995,96,97,99, 2003, 2006 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
19 #include <sysdep-cancel.h>
20 #include <socketcall.h>
22 #define P(a, b) P2(a, b)
25 /* The socket-oriented system calls are handled unusally in Linux.
26 They are all gated through the single `socketcall' system call number.
27 `socketcall' takes two arguments: the first is the subcode, specifying
28 which socket function is being called; and the second is a pointer to
29 the arguments to the specific function.
31 The .S files for the other calls just #define socket and #include this.
32 They also #define a 'number-of-arguments' word in NARGS, which
37 #error NARGS not defined
42 /* 0(r1) and 4(r1) are reserved by the ABI, 8(r1), 12(r1), 16(r1) are used
43 for temp saves. 44(r1) is used to save r30. */
47 # ifndef NO_WEAK_ALIAS
48 # define __socket P(__,socket)
50 # define __socket socket
57 cfi_adjust_cfa_offset(48)
62 stw r4,4+stackblock(r1)
65 stw r5,8+stackblock(r1)
68 stw r6,12+stackblock(r1)
71 stw r7,16+stackblock(r1)
74 stw r8,20+stackblock(r1)
77 #error too many arguments!
80 #if defined NEED_CANCELLATION && defined CENABLE
85 li r3,P(SOCKOP_,socket)
87 DO_CALL(SYS_ify(socketcall))
91 #if defined NEED_CANCELLATION && defined CENABLE
99 li r3,P(SOCKOP_,socket)
100 addi r4,r1,stackblock
101 DO_CALL(SYS_ify(socketcall))
117 PSEUDO_END (__socket)
119 #ifndef NO_WEAK_ALIAS
120 weak_alias (__socket, socket)