From 46d7de1907b6d575d9f156c1f93e0e8dd6254674 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 13 Feb 1996 11:38:58 +0000 Subject: Sat Feb 10 13:09:03 1996 Andreas Schwab * sysdeps/unix/sysv/linux/m68k/brk.c, sysdeps/unix/sysv/linux/m68k/mmap.S, sysdeps/unix/sysv/linux/m68k/select.S, sysdeps/unix/sysv/linux/m68k/sigcontext.h, sysdeps/unix/sysv/linux/m68k/sigreturn.S, sysdeps/unix/sysv/linux/m68k/socket.S, sysdeps/unix/sysv/linux/m68k/syscall.S, sysdeps/unix/sysv/linux/m68k/sysdep.S, sysdeps/unix/sysv/linux/m68k/sysdep.h: New files. * sysdeps/unix/sysv/linux/m68k/brk.c, sysdeps/unix/sysv/linux/m68k/mmap.S, sysdeps/unix/sysv/linux/m68k/select.S, sysdeps/unix/sysv/linux/m68k/sigcontext.h, sysdeps/unix/sysv/linux/m68k/sigreturn.S, sysdeps/unix/sysv/linux/m68k/socket.S, sysdeps/unix/sysv/linux/m68k/syscall.S, sysdeps/unix/sysv/linux/m68k/sysdep.S, sysdeps/unix/sysv/linux/m68k/sysdep.h: New files. --- sysdeps/unix/sysv/linux/m68k/socket.S | 62 +++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/m68k/socket.S (limited to 'sysdeps/unix/sysv/linux/m68k/socket.S') diff --git a/sysdeps/unix/sysv/linux/m68k/socket.S b/sysdeps/unix/sysv/linux/m68k/socket.S new file mode 100644 index 0000000000..a85f41c334 --- /dev/null +++ b/sysdeps/unix/sysv/linux/m68k/socket.S @@ -0,0 +1,62 @@ +/* Copyright (C) 1996 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, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include +#include + +#define P(a, b) P2(a, b) +#define P2(a, b) a##b + + .text + SYSCALL_ERROR_HANDLER + +/* 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. */ + +.globl P(__,socket) +ENTRY (P(__,socket)) + + /* Save registers. */ + move.l %d2, %a0 + + move.l #SYS_ify (socketcall), %d0 /* System call number in %d0. */ + + /* Use ## so `socket' is a separate token that might be #define'd. */ + move.l #P (SOCKOP_,socket), %d1 /* Subcode is first arg to syscall. */ + lea 4(%sp), %a1 /* Address of args is 2nd arg. */ + move.l %a1, %d2 + + /* Do the system call trap. */ + trap #0 + + /* Restore registers. */ + move.l %a0, %d2 + + /* %d0 is < 0 if there was an error. */ + tst.l %d0 + jmi syscall_error + + /* Successful; return the syscall's value. */ + rts + +weak_alias (P(__,socket), socket) -- cgit 1.4.1