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Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/am33/socket.S')
-rw-r--r--ports/sysdeps/unix/sysv/linux/am33/socket.S72
1 files changed, 72 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/am33/socket.S b/ports/sysdeps/unix/sysv/linux/am33/socket.S
new file mode 100644
index 0000000000..b4d3caab8a
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/am33/socket.S
@@ -0,0 +1,72 @@
+/* Copyright 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>.
+ Based on ../i386/socket.S.
+
+ 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. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <socketcall.h>
+
+#define P(a, b) P2(a, b)
+#define P2(a, b) a##b
+
+ .text
+/* 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. */
+
+#ifndef __socket
+#ifndef NO_WEAK_ALIAS
+#define __socket P(__,socket)
+#else
+#define __socket socket
+#endif
+#endif
+
+.globl __socket
+ENTRY (__socket)
+
+ mov d0,(4,sp)
+ mov d1,(8,sp)
+
+ mov SYS_ify(socketcall),d0 /* System call number in d0. */
+
+ /* Use ## so `socket' is a separate token that might be #define'd. */
+ mov P(SOCKOP_,socket),a0 /* Subcode is first arg to syscall. */
+ mov sp,d1
+ add 4,d1 /* Address of args is 2nd arg. */
+
+ /* Do the system call trap. */
+ syscall 0
+
+ /* d0 is < 0 if there was an error. */
+ cmp -126,d0
+ bls L(pseudo_end)
+ jmp SYSCALL_ERROR_LABEL
+
+ /* Successful; return the syscall's value. */
+L(pseudo_end):
+ ret
+
+PSEUDO_END (__socket)
+
+#ifndef NO_WEAK_ALIAS
+weak_alias (__socket, socket)
+#endif