1 /* Copyright (C) 2004, 2007 Free Software Foundation, Inc. 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 Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the 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 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 #include <pthreadP.h> 19 #include <sysdep.h> 20 21 #define __SETXID_1(cmd, arg1) \ 22 cmd.id[0] = arg1 23 #define __SETXID_2(cmd, arg1, arg2) \ 24 __SETXID_1 (cmd, arg1); cmd.id[1] = arg2 25 #define __SETXID_3(cmd, arg1, arg2, arg3) \ 26 __SETXID_2 (cmd, arg1, arg2); cmd.id[2] = arg3 27 28 #ifdef SINGLE_THREAD 29 # define INLINE_SETXID_SYSCALL(name, nr, args...) \ 30 INLINE_SYSCALL (name, nr, args) 31 #elif defined SHARED 32 # define INLINE_SETXID_SYSCALL(name, nr, args...) \ 33 ({ \ 34 int __result; \ 35 struct xid_command __cmd; \ 36 __cmd.syscall_no = __NR_##name; \ 37 __SETXID_##nr (__cmd, args); \ 38 __result = PTHFCT_CALL (__nptl_setxid, (&__cmd)); \ 39 } \ 40 __result; \ 41 }) 42 #else 43 # define INLINE_SETXID_SYSCALL(name, nr, args...) \ 44 ({ \ 45 extern __typeof (__nptl_setxid) __nptl_setxid __attribute__((weak));\ 46 int __result; \ 47 if (__builtin_expect (__nptl_setxid != NULL, 0)) \ 48 { \ 49 struct xid_command __cmd; \ 50 __cmd.syscall_no = __NR_##name; \ 51 __SETXID_##nr (__cmd, args); \ 52 __result =__nptl_setxid (&__cmd); \ 53 } \ 54 else \ 55 __result = INLINE_SYSCALL (name, nr, args); \ 56 __result; \ 57 }) 58 #endif 59