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 Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 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 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 see <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
42 # ifndef NO_WEAK_ALIAS
43 # define __socket P(__,socket)
45 # define __socket socket
50 #define FRAMESIZE (FRAME_MIN_SIZE+16+64)
51 #define stackblock (FRAME_MIN_SIZE+16)
53 #define FRAMESIZE (FRAME_MIN_SIZE+16)
54 #define stackblock (FRAMESIZE+FRAME_PARM_SAVE) /* offset to parm save area. */
60 stdu r1,-FRAMESIZE(r1)
61 cfi_adjust_cfa_offset(FRAMESIZE)
66 std r4,8+stackblock(r1)
69 std r5,16+stackblock(r1)
72 std r6,24+stackblock(r1)
75 std r7,32+stackblock(r1)
78 std r8,40+stackblock(r1)
81 std r9,48+stackblock(r1)
84 std r10,56+stackblock(r1)
87 #error too many arguments!
90 #if defined NEED_CANCELLATION && defined CENABLE
95 li r3,P(SOCKOP_,socket)
97 DO_CALL(SYS_ify(socketcall))
99 cfi_adjust_cfa_offset(-FRAMESIZE)
102 #if defined NEED_CANCELLATION && defined CENABLE
104 cfi_adjust_cfa_offset(FRAMESIZE)
106 std r9,FRAMESIZE+FRAME_LR_SAVE(r1)
107 cfi_offset (lr, FRAME_LR_SAVE)
109 std r3,FRAME_MIN_SIZE+8(r1)
110 li r3,P(SOCKOP_,socket)
111 addi r4,r1,stackblock
112 DO_CALL(SYS_ify(socketcall))
114 std r3,FRAME_MIN_SIZE(r1)
115 std r0,FRAMESIZE+FRAME_CR_SAVE(r1)
116 cfi_offset (cr, FRAME_CR_SAVE)
117 ld r3,FRAME_MIN_SIZE+8(r1)
119 ld r4,FRAMESIZE+FRAME_LR_SAVE(r1)
120 ld r0,FRAMESIZE+FRAME_CR_SAVE(r1)
121 ld r3,FRAME_MIN_SIZE(r1)
125 cfi_adjust_cfa_offset(-FRAMESIZE)
130 PSEUDO_END (__socket)
132 #ifndef NO_WEAK_ALIAS
133 weak_alias (__socket, socket)