| /* |
| * include/common/syscall.h |
| * Redefinition of some missing OS-specific system calls. |
| * |
| * Copyright 2000-2012 Willy Tarreau <w@1wt.eu> |
| * |
| * This 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, version 2.1 |
| * exclusively. |
| * |
| * This 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 this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| |
| #ifndef _COMMON_SYSCALL_H |
| #define _COMMON_SYSCALL_H |
| |
| #ifdef __linux__ |
| |
| #include <errno.h> |
| #include <unistd.h> |
| #include <sys/syscall.h> |
| |
| /* On Linux, _syscall macros were removed after 2.6.18, but we still prefer |
| * them because syscall() is buggy on old libcs. If _syscall is not defined, |
| * we're on a recent kernel with a recent libc and we should be safe, so we |
| * emulate is using syscall(). |
| */ |
| #ifndef _syscall1 |
| #define _syscall1(tr, nr, t1, n1) \ |
| tr nr(t1 n1) { \ |
| return syscall(__NR_##nr, n1); \ |
| } |
| #endif |
| |
| #ifndef _syscall2 |
| #define _syscall2(tr, nr, t1, n1, t2, n2) \ |
| tr nr(t1 n1, t2 n2) { \ |
| return syscall(__NR_##nr, n1, n2); \ |
| } |
| #endif |
| |
| #ifndef _syscall3 |
| #define _syscall3(tr, nr, t1, n1, t2, n2, t3, n3) \ |
| tr nr(t1 n1, t2 n2, t3 n3) { \ |
| return syscall(__NR_##nr, n1, n2, n3); \ |
| } |
| #endif |
| |
| #ifndef _syscall4 |
| #define _syscall4(tr, nr, t1, n1, t2, n2, t3, n3, t4, n4) \ |
| tr nr(t1 n1, t2 n2, t3 n3, t4 n4) { \ |
| return syscall(__NR_##nr, n1, n2, n3, n4); \ |
| } |
| #endif |
| |
| #ifndef _syscall5 |
| #define _syscall5(tr, nr, t1, n1, t2, n2, t3, n3, t4, n4, t5, n5) \ |
| tr nr(t1 n1, t2 n2, t3 n3, t4 n4, t5 n5) { \ |
| return syscall(__NR_##nr, n1, n2, n3, n4, n5); \ |
| } |
| #endif |
| |
| #ifndef _syscall6 |
| #define _syscall6(tr, nr, t1, n1, t2, n2, t3, n3, t4, n4, t5, n5, t6, n6) \ |
| tr nr(t1 n1, t2 n2, t3 n3, t4 n4, t5 n5, t6 n6) { \ |
| return syscall(__NR_##nr, n1, n2, n3, n4, n5, n6); \ |
| } |
| #endif |
| |
| |
| /* Define some syscall numbers that are sometimes needed */ |
| |
| #endif /* __linux__ */ |
| #endif /* _COMMON_SYSCALL_H */ |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |