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authorRoland McGrath <roland@gnu.org>1996-02-13 11:38:58 +0000
committerRoland McGrath <roland@gnu.org>1996-02-13 11:38:58 +0000
commit46d7de1907b6d575d9f156c1f93e0e8dd6254674 (patch)
tree32de703090640fe1e571bd28d255cf03f91a3e44 /sysdeps/unix/sysv/linux/m68k/socket.S
parent4eea716e2dff234d74812ccd622baeeec9518e65 (diff)
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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.S62
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)