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119 lines
2.9 KiB
ArmAsm
119 lines
2.9 KiB
ArmAsm
/* Copyright (C) 1997-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep-cancel.h>
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#include <socketcall.h>
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#define P(a, b) P2(a, b)
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#define P2(a, b) a##b
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#ifndef NARGS
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#ifdef socket
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#error NARGS not defined
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#endif
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#define NARGS 3
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#endif
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.text
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/* The socket-oriented system calls are handled unusually in Linux.
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They are all gated through the single `socketcall' system call number.
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`socketcall' takes two arguments: the first is the subcode, specifying
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which socket function is being called; and the second is a pointer to
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the arguments to the specific function.
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The .S files for the other calls just #define socket and #include this. */
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#ifndef __socket
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# ifndef NO_WEAK_ALIAS
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# define __socket P(__,socket)
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# else
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# define __socket socket
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# endif
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#endif
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.globl __syscall_error
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ENTRY(__socket)
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/* Drop up to 6 arguments (recvfrom) into the memory allocated by
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the caller for varargs, since that's really what we have. */
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stx %o0, [%sp + STACK_BIAS + 128 + 0]
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stx %o1, [%sp + STACK_BIAS + 128 + 8]
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#if NARGS > 2
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stx %o2, [%sp + STACK_BIAS + 128 + 16]
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#if NARGS > 3
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stx %o3, [%sp + STACK_BIAS + 128 + 24]
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#if NARGS > 4
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stx %o4, [%sp + STACK_BIAS + 128 + 32]
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#if NARGS > 5
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stx %o5, [%sp + STACK_BIAS + 128 + 40]
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#endif
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#endif
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#endif
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#endif
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#if defined NEED_CANCELLATION && defined CENABLE
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SINGLE_THREAD_P
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cmp %g1, 0
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bne .Lsocket_cancel
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#endif
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mov P(SOCKOP_,socket), %o0 /* arg 1: socket subfunction */
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add %sp, STACK_BIAS + 128, %o1 /* arg 2: parameter block */
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LOADSYSCALL(socketcall)
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ta 0x6d
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bcc,pt %xcc, 1f
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mov %o7, %g1
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call __syscall_error
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mov %g1, %o7
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1: retl
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nop
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#if defined NEED_CANCELLATION && defined CENABLE
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.Lsocket_cancel:
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save %sp, -160, %sp
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cfi_def_cfa_register (%fp)
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cfi_window_save
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cfi_register (%o7, %i7)
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CENABLE
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nop
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mov %o0, %l0
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add %sp, 160 + STACK_BIAS + 128, %o1
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mov P(SOCKOP_,socket), %o0
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LOADSYSCALL(socketcall)
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ta 0x6d
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bcc,pt %xcc, 1f
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mov %o0, %l1
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CDISABLE;
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mov %l0, %o0;
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call __syscall_error;
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mov %l1, %o0;
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ba,pt %xcc, 2f
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mov -1, %l1;
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1: CDISABLE
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mov %l0, %o0
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2: jmpl %i7 + 8, %g0
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restore %g0, %l1, %o0
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#endif
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END(__socket)
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#ifndef NO_WEAK_ALIAS
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weak_alias (__socket, socket)
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#endif
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