mirror of
http://git.haproxy.org/git/haproxy.git/
synced 2024-12-11 22:15:14 +00:00
cefad67689
Trying to build with an old gcc and glibc revealed that we must not state "inline" in our _syscall* definitions since it's already present in the declaration making use of the _syscall* macros.
154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/*
|
|
* 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 */
|
|
|
|
/* Epoll was provided as a patch for 2.4 for a long time and was not always
|
|
* exported as a known sysctl number by libc.
|
|
*/
|
|
#if !defined(__NR_epoll_ctl)
|
|
#if defined(__powerpc__) || defined(__powerpc64__)
|
|
#define __NR_epoll_create 236
|
|
#define __NR_epoll_ctl 237
|
|
#define __NR_epoll_wait 238
|
|
#elif defined(__sparc__) || defined(__sparc64__)
|
|
#define __NR_epoll_create 193
|
|
#define __NR_epoll_ctl 194
|
|
#define __NR_epoll_wait 195
|
|
#elif defined(__x86_64__)
|
|
#define __NR_epoll_create 213
|
|
#define __NR_epoll_ctl 214
|
|
#define __NR_epoll_wait 215
|
|
#elif defined(__alpha__)
|
|
#define __NR_epoll_create 407
|
|
#define __NR_epoll_ctl 408
|
|
#define __NR_epoll_wait 409
|
|
#elif defined (__i386__)
|
|
#define __NR_epoll_create 254
|
|
#define __NR_epoll_ctl 255
|
|
#define __NR_epoll_wait 256
|
|
#endif /* $arch */
|
|
#endif /* __NR_epoll_ctl */
|
|
|
|
/* splice is even more recent than epoll. It appeared around 2.6.18 but was
|
|
* not in libc for a while.
|
|
*/
|
|
#ifndef __NR_splice
|
|
#if defined(__powerpc__) || defined(__powerpc64__)
|
|
#define __NR_splice 283
|
|
#elif defined(__sparc__) || defined(__sparc64__)
|
|
#define __NR_splice 232
|
|
#elif defined(__x86_64__)
|
|
#define __NR_splice 275
|
|
#elif defined(__alpha__)
|
|
#define __NR_splice 468
|
|
#elif defined (__i386__)
|
|
#define __NR_splice 313
|
|
#endif /* $arch */
|
|
#endif /* __NR_splice */
|
|
|
|
/* accept4() appeared in Linux 2.6.28, but it might not be in all libcs. Some
|
|
* archs have it as a native syscall, other ones use the socketcall instead.
|
|
*/
|
|
#ifndef __NR_accept4
|
|
#if defined(__x86_64__)
|
|
#define __NR_accept4 288
|
|
#elif defined(__sparc__) || defined(__sparc64__)
|
|
#define __NR_accept4 323
|
|
#elif defined(__arm__) || defined(__thumb__)
|
|
#define __NR_accept4 (__NR_SYSCALL_BASE+366)
|
|
#else
|
|
#define ACCEPT4_USE_SOCKETCALL 1
|
|
#ifndef SYS_ACCEPT4
|
|
#define SYS_ACCEPT4 18
|
|
#endif /* SYS_ACCEPT4 */
|
|
#endif /* $arch */
|
|
#endif /* __NR_accept4 */
|
|
|
|
#endif /* __linux__ */
|
|
#endif /* _COMMON_SYSCALL_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|