diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S')
-rw-r--r-- | libc/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S b/libc/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S new file mode 100644 index 000000000..71a63d5b7 --- /dev/null +++ b/libc/sysdeps/unix/sysv/linux/sparc/sparc32/socket.S @@ -0,0 +1,117 @@ +/* Copyright (C) 1997, 1998, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep-cancel.h> +#include <socketcall.h> + +#define P(a, b) P2(a, b) +#define P2(a, b) a##b + +#ifndef NARGS +#ifdef socket +#error NARGS not defined +#endif +#define NARGS 3 +#endif + + .text +/* The socket-oriented system calls are handled unusually 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 __syscall_error +ENTRY (__socket) + + /* Drop up to 6 arguments (recvfrom) into the memory allocated by + the caller for varargs, since that's really what we have. */ + st %o0, [%sp + 68 + 0] + st %o1, [%sp + 68 + 4] +#if NARGS > 2 + st %o2, [%sp + 68 + 8] +#if NARGS > 3 + st %o3, [%sp + 68 + 12] +#if NARGS > 4 + st %o4, [%sp + 68 + 16] +#if NARGS > 5 + st %o5, [%sp + 68 + 20] +#endif +#endif +#endif +#endif + +#if defined NEED_CANCELLATION && defined CENABLE + SINGLE_THREAD_P + cmp %g1, 0 + bne .Lsocket_cancel +#endif + mov P(SOCKOP_,socket), %o0 /* arg 1: socket subfunction */ + add %sp, 68, %o1 /* arg 2: parameter block */ + LOADSYSCALL(socketcall) + t 0x10 + bcc 1f + mov %o7, %g1 + call __syscall_error + mov %g1, %o7 +1: jmpl %o7 + 8, %g0 + nop + +#if defined NEED_CANCELLATION && defined CENABLE +.Lsocket_cancel: + save %sp, -96, %sp + cfi_def_cfa_register(%fp) + cfi_window_save + cfi_register(%o7, %i7) + CENABLE + nop + mov %o0, %l0 + add %sp, 68 + 96, %o1 + mov P(SOCKOP_,socket), %o0 + LOADSYSCALL(socketcall) + t 0x10 + bcc 1f + mov %o0, %l1 + CDISABLE; + mov %l0, %o0; + call __syscall_error; + mov %l1, %o0; + b 1f + mov -1, %l1; +1: CDISABLE + mov %l0, %o0 +2: jmpl %i7 + 8, %g0 + restore %g0, %l1, %o0 +#endif + +END (__socket) + +#ifndef NO_WEAK_ALIAS +weak_alias (__socket, socket) +#endif |