| /* Copyright (C) 1995,96,97,99, 2003, 2006 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., 51 Franklin Street, |
| Fifth Floor, Boston MA 02110-1301, USA. */ |
| |
| #include <sysdep-cancel.h> |
| #include <socketcall.h> |
| |
| #define P(a, b) P2(a, b) |
| #define P2(a, b) a##b |
| |
| /* 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. |
| They also #define a 'number-of-arguments' word in NARGS, which |
| defaults to 3. */ |
| |
| #ifndef NARGS |
| #ifdef socket |
| #error NARGS not defined |
| #endif |
| #define NARGS 3 |
| #endif |
| |
| #ifndef __socket |
| # ifndef NO_WEAK_ALIAS |
| # define __socket P(__,socket) |
| # else |
| # define __socket socket |
| # endif |
| #endif |
| |
| #define FRAMESIZE 128 |
| #define stackblock FRAMESIZE+48 /* offset to parm save area. */ |
| |
| .text |
| ENTRY(__socket) |
| CALL_MCOUNT NARGS |
| stdu r1,-FRAMESIZE(r1) |
| cfi_adjust_cfa_offset(FRAMESIZE) |
| #if NARGS >= 1 |
| std r3,stackblock(r1) |
| #endif |
| #if NARGS >= 2 |
| std r4,8+stackblock(r1) |
| #endif |
| #if NARGS >= 3 |
| std r5,16+stackblock(r1) |
| #endif |
| #if NARGS >= 4 |
| std r6,24+stackblock(r1) |
| #endif |
| #if NARGS >= 5 |
| std r7,32+stackblock(r1) |
| #endif |
| #if NARGS >= 6 |
| std r8,40+stackblock(r1) |
| #endif |
| #if NARGS >= 7 |
| std r9,48+stackblock(r1) |
| #endif |
| #if NARGS >= 8 |
| std r10,56+stackblock(r1) |
| #endif |
| #if NARGS >= 9 |
| #error too many arguments! |
| #endif |
| |
| #if defined NEED_CANCELLATION && defined CENABLE |
| SINGLE_THREAD_P |
| bne- .Lsocket_cancel |
| #endif |
| |
| li r3,P(SOCKOP_,socket) |
| addi r4,r1,stackblock |
| DO_CALL(SYS_ify(socketcall)) |
| addi r1,r1,FRAMESIZE |
| cfi_adjust_cfa_offset(-FRAMESIZE) |
| PSEUDO_RET |
| |
| #if defined NEED_CANCELLATION && defined CENABLE |
| .Lsocket_cancel: |
| cfi_adjust_cfa_offset(FRAMESIZE) |
| mflr r9 |
| std r9,FRAMESIZE+16(r1) |
| cfi_offset (lr, 16) |
| CENABLE |
| std r3,120(r1) |
| li r3,P(SOCKOP_,socket) |
| addi r4,r1,stackblock |
| DO_CALL(SYS_ify(socketcall)) |
| mfcr r0 |
| std r3,112(r1) |
| std r0,FRAMESIZE+8(r1) |
| cfi_offset (cr, 8) |
| ld r3,120(r1) |
| CDISABLE |
| ld r4,FRAMESIZE+16(r1) |
| ld r0,FRAMESIZE+8(r1) |
| ld r3,112(r1) |
| mtlr r4 |
| mtcr r0 |
| addi r1,r1,FRAMESIZE |
| cfi_adjust_cfa_offset(-FRAMESIZE) |
| cfi_restore(lr) |
| cfi_restore(cr) |
| PSEUDO_RET |
| #endif |
| PSEUDO_END (__socket) |
| |
| #ifndef NO_WEAK_ALIAS |
| weak_alias (__socket, socket) |
| #endif |
