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/* Copyright (C) 1995-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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,
see <http://www.gnu.org/licenses/>. */
#include <sysdep-cancel.h>
#include <socketcall.h>
#define P(a, b) P2(a, b)
#define P2(a, b) a##b
/* 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.
They also #define a 'number-of-arguments' word in NARGS, which
defaults to 3. */
#ifndef NARGS
#ifdef socket
#error NARGS not defined
#endif
#define NARGS 3
#endif
#ifndef __socket
# ifndef NO_WEAK_ALIAS
# define __socket P(__,socket)
# else
# define __socket socket
# endif
#endif
#if _CALL_ELF == 2
#define FRAMESIZE (FRAME_MIN_SIZE+16+64)
#define stackblock (FRAME_MIN_SIZE+16)
#else
#define FRAMESIZE (FRAME_MIN_SIZE+16)
#define stackblock (FRAMESIZE+FRAME_PARM_SAVE) /* offset to parm save area. */
#endif
.text
ENTRY(__socket)
CALL_MCOUNT NARGS
stdu r1,-FRAMESIZE(r1)
cfi_adjust_cfa_offset(FRAMESIZE)
#if NARGS >= 1
std r3,stackblock(r1)
#endif
#if NARGS >= 2
std r4,8+stackblock(r1)
#endif
#if NARGS >= 3
std r5,16+stackblock(r1)
#endif
#if NARGS >= 4
std r6,24+stackblock(r1)
#endif
#if NARGS >= 5
std r7,32+stackblock(r1)
#endif
#if NARGS >= 6
std r8,40+stackblock(r1)
#endif
#if NARGS >= 7
std r9,48+stackblock(r1)
#endif
#if NARGS >= 8
std r10,56+stackblock(r1)
#endif
#if NARGS >= 9
#error too many arguments!
#endif
#if defined NEED_CANCELLATION && defined CENABLE
SINGLE_THREAD_P
bne- .Lsocket_cancel
#endif
li r3,P(SOCKOP_,socket)
addi r4,r1,stackblock
DO_CALL(SYS_ify(socketcall))
addi r1,r1,FRAMESIZE
cfi_adjust_cfa_offset(-FRAMESIZE)
PSEUDO_RET
#if defined NEED_CANCELLATION && defined CENABLE
.Lsocket_cancel:
cfi_adjust_cfa_offset(FRAMESIZE)
mflr r9
std r9,FRAMESIZE+FRAME_LR_SAVE(r1)
cfi_offset (lr, FRAME_LR_SAVE)
CENABLE
std r3,FRAME_MIN_SIZE+8(r1)
li r3,P(SOCKOP_,socket)
addi r4,r1,stackblock
DO_CALL(SYS_ify(socketcall))
mfcr r0
std r3,FRAME_MIN_SIZE(r1)
std r0,FRAMESIZE+FRAME_CR_SAVE(r1)
cfi_offset (cr, FRAME_CR_SAVE)
ld r3,FRAME_MIN_SIZE+8(r1)
CDISABLE
ld r4,FRAMESIZE+FRAME_LR_SAVE(r1)
ld r0,FRAMESIZE+FRAME_CR_SAVE(r1)
ld r3,FRAME_MIN_SIZE(r1)
mtlr r4
mtcr r0
addi r1,r1,FRAMESIZE
cfi_adjust_cfa_offset(-FRAMESIZE)
cfi_restore(lr)
cfi_restore(cr)
PSEUDO_RET
#endif
PSEUDO_END (__socket)
#ifndef NO_WEAK_ALIAS
weak_alias (__socket, socket)
#endif
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