diff options
| author | Roland McGrath <roland@gnu.org> | 1996-02-13 11:38:58 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1996-02-13 11:38:58 +0000 |
| commit | 46d7de1907b6d575d9f156c1f93e0e8dd6254674 (patch) | |
| tree | 32de703090640fe1e571bd28d255cf03f91a3e44 /sysdeps/unix/sysv/linux/m68k/socket.S | |
| parent | 4eea716e2dff234d74812ccd622baeeec9518e65 (diff) | |
Sat Feb 10 13:09:03 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* 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.
Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k/socket.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/m68k/socket.S | 62 |
1 files changed, 62 insertions, 0 deletions
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 <sysdep.h> +#include <sys/socketcall.h> + +#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) |