projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| a334319f | 1 | /* Copyright (C) 1995, 1996, 1997, 1999, 2003 Free Software Foundation, Inc. |
| cfc91acd RM |
2 | This file is part of the GNU C Library. |
| 3 | ||
| 4 | The GNU C Library is free software; you can redistribute it and/or | |
| 5 | modify it under the terms of the GNU Library General Public License as | |
| 6 | published by the Free Software Foundation; either version 2 of the | |
| 7 | License, or (at your option) any later version. | |
| 8 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Library General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Library General Public | |
| 15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| a334319f UD |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 17 | Boston, MA 02111-1307, USA. */ | |
| cfc91acd | 18 | |
| c16abc04 | 19 | #include <sysdep-cancel.h> |
| cfc91acd RM |
20 | #include <socketcall.h> |
| 21 | ||
| 22 | #define P(a, b) P2(a, b) | |
| 23 | #define P2(a, b) a##b | |
| 24 | ||
| 25 | /* The socket-oriented system calls are handled unusally in Linux. | |
| 26 | They are all gated through the single `socketcall' system call number. | |
| 27 | `socketcall' takes two arguments: the first is the subcode, specifying | |
| 28 | which socket function is being called; and the second is a pointer to | |
| 29 | the arguments to the specific function. | |
| 30 | ||
| 31 | The .S files for the other calls just #define socket and #include this. | |
| 32 | They also #define a 'number-of-arguments' word in NARGS, which | |
| 33 | defaults to 3. */ | |
| 34 | ||
| 35 | #ifndef NARGS | |
| 36 | #ifdef socket | |
| 37 | #error NARGS not defined | |
| 38 | #endif | |
| 39 | #define NARGS 3 | |
| 40 | #endif | |
| 41 | ||
| aff4519d | 42 | #define stackblock 80 /* offset to socket parm area. */ |
| cfc91acd | 43 | |
| a334319f UD |
44 | #ifndef socket |
| 45 | /* If this is just socket.S leave it alone! */ | |
| 46 | #else | |
| cfc91acd | 47 | #ifndef __socket |
| a334319f UD |
48 | #define __socket P(__,socket) |
| 49 | #endif | |
| cfc91acd RM |
50 | #endif |
| 51 | ||
| 52 | .text | |
| 53 | ENTRY(__socket) | |
| 865d953f | 54 | CALL_MCOUNT NARGS |
| a334319f | 55 | cfi_startproc |
| aff4519d | 56 | stdu r1,-144(r1) |
| 9df2c61c | 57 | cfi_adjust_cfa_offset(144) |
| cfc91acd RM |
58 | #if NARGS >= 1 |
| 59 | std r3,stackblock(r1) | |
| 60 | #endif | |
| 61 | #if NARGS >= 2 | |
| 62 | std r4,8+stackblock(r1) | |
| 63 | #endif | |
| 64 | #if NARGS >= 3 | |
| 65 | std r5,16+stackblock(r1) | |
| 66 | #endif | |
| 67 | #if NARGS >= 4 | |
| 68 | std r6,24+stackblock(r1) | |
| 69 | #endif | |
| 70 | #if NARGS >= 5 | |
| 71 | std r7,32+stackblock(r1) | |
| 72 | #endif | |
| 73 | #if NARGS >= 6 | |
| 74 | std r8,40+stackblock(r1) | |
| 75 | #endif | |
| 76 | #if NARGS >= 7 | |
| 77 | std r9,48+stackblock(r1) | |
| 78 | #endif | |
| 79 | #if NARGS >= 8 | |
| 80 | std r10,56+stackblock(r1) | |
| 81 | #endif | |
| 82 | #if NARGS >= 9 | |
| 83 | #error too many arguments! | |
| 84 | #endif | |
| aff4519d UD |
85 | |
| 86 | #if defined NEED_CANCELLATION && defined CENABLE | |
| 87 | SINGLE_THREAD_P | |
| 88 | bne- .Lsocket_cancel | |
| 89 | #endif | |
| 90 | ||
| 91 | li r3,P(SOCKOP_,socket) | |
| 92 | addi r4,r1,stackblock | |
| 93 | DO_CALL(SYS_ify(socketcall)) | |
| 94 | addi r1,r1,144 | |
| 95 | PSEUDO_RET | |
| 96 | ||
| 97 | #if defined NEED_CANCELLATION && defined CENABLE | |
| 98 | .Lsocket_cancel: | |
| 99 | mflr r9 | |
| 100 | std r9,144+16(r1) | |
| 9df2c61c | 101 | cfi_offset (lr, 16) |
| aff4519d UD |
102 | CENABLE |
| 103 | std r3,72(r1) | |
| 104 | li r3,P(SOCKOP_,socket) | |
| cfc91acd RM |
105 | addi r4,r1,stackblock |
| 106 | DO_CALL(SYS_ify(socketcall)) | |
| aff4519d UD |
107 | mfcr r0 |
| 108 | std r3,64(r1) | |
| 109 | std r0,8(r1) | |
| 110 | ld r3,72(r1) | |
| 111 | CDISABLE | |
| 112 | ld r4,144+16(r1) | |
| 113 | ld r0,8(r1) | |
| 114 | ld r3,64(r1) | |
| 115 | mtlr r4 | |
| 116 | mtcr r0 | |
| 117 | addi r1,r1,144 | |
| cfc91acd | 118 | PSEUDO_RET |
| aff4519d | 119 | #endif |
| a334319f | 120 | cfi_endproc |
| cfc91acd RM |
121 | PSEUDO_END (__socket) |
| 122 | ||
| 123 | weak_alias (__socket, socket) |