diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/am33/socket.S')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/am33/socket.S | 72 |
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 |