1 /* Copyright (C) 1995-2015 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, see
16 <http://www.gnu.org/licenses/>. */
18 #include <sysdep-cancel.h>
19 #include <socketcall.h>
21 #define P(a, b) P2(a, b)
24 /* The socket-oriented system calls are handled unusally in Linux.
25 They are all gated through the single `socketcall' system call number.
26 `socketcall' takes two arguments: the first is the subcode, specifying
27 which socket function is being called; and the second is a pointer to
28 the arguments to the specific function.
30 The .S files for the other calls just #define socket and #include this.
31 They also #define a 'number-of-arguments' word in NARGS, which
36 #error NARGS not defined
41 /* 0(r1) and 4(r1) are reserved by the ABI, 8(r1), 12(r1), 16(r1) are used
42 for temp saves. 44(r1) is used to save r30. */
46 # ifndef NO_WEAK_ALIAS
47 # define __socket P(__,socket)
49 # define __socket socket
56 cfi_adjust_cfa_offset(48)
61 stw r4,4+stackblock(r1)
64 stw r5,8+stackblock(r1)
67 stw r6,12+stackblock(r1)
70 stw r7,16+stackblock(r1)
73 stw r8,20+stackblock(r1)
76 #error too many arguments!
79 #if defined NEED_CANCELLATION && defined CENABLE
84 li r3,P(SOCKOP_,socket)
86 DO_CALL(SYS_ify(socketcall))
90 #if defined NEED_CANCELLATION && defined CENABLE
97 li r3,P(SOCKOP_,socket)
99 DO_CALL(SYS_ify(socketcall))
114 PSEUDO_END (__socket)
116 #ifndef NO_WEAK_ALIAS
117 weak_alias (__socket, socket)