syscalls.c

它通过提供glibc兼容使得应用程序移植到较小的c 库时相当得容易. 它能够应用到带虚拟存储的Linux和uClinux上.在大多数带MMU部件的平台上为使它更加紧凑,它也能够编译成共享库.uClib

	return(__syscall_sched_setscheduler(pid, policy, p));
}
#endif
#endif

//#define __NR_sched_getscheduler       157
#ifdef __NR_sched_getscheduler
#ifdef L___syscall_sched_getscheduler
#include <sched.h>
#define __NR___syscall_sched_getscheduler __NR_sched_getscheduler
static inline
_syscall1(int, __syscall_sched_getscheduler, __kernel_pid_t, pid);
int sched_getscheduler(pid_t pid)
{
	return(__syscall_sched_getscheduler(pid));
}
#endif
#endif

//#define __NR_sched_yield              158
#ifdef __NR_sched_yield
#ifdef L_sched_yield
#include <sched.h>
_syscall0(int, sched_yield);
#endif
#endif

//#define __NR_sched_get_priority_max   159
#ifdef __NR_sched_get_priority_max
#ifdef L_sched_get_priority_max
#include <sched.h>
_syscall1(int, sched_get_priority_max, int, policy);
#endif
#endif

//#define __NR_sched_get_priority_min   160
#ifdef __NR_sched_get_priority_min
#ifdef L_sched_get_priority_min
#include <sched.h>
_syscall1(int, sched_get_priority_min, int, policy);
#endif
#endif

//#define __NR_sched_rr_get_interval    161
#ifdef __NR_sched_rr_get_interval
#ifdef L___syscall_sched_rr_get_interval
#include <sched.h>
#define __NR___syscall_sched_rr_get_interval __NR_sched_rr_get_interval
static inline
_syscall2(int, __syscall_sched_rr_get_interval, __kernel_pid_t, pid, struct timespec *, tp);
int sched_rr_get_interval(pid_t pid, struct timespec * tp)
{
	return(__syscall_sched_rr_get_interval(pid, tp));
}
#endif
#endif

//#define __NR_nanosleep                162
#ifdef L___libc_nanosleep
#include <time.h>
#define __NR___libc_nanosleep __NR_nanosleep
_syscall2(int, __libc_nanosleep, const struct timespec *, req, struct timespec *, rem);
weak_alias(__libc_nanosleep, nanosleep)
#endif

//#define __NR_mremap                   163
#ifdef L_mremap
#include <unistd.h>
#include <sys/mman.h>
_syscall4(__ptr_t, mremap, __ptr_t, old_address, size_t, old_size, size_t, new_size, int, may_move);
#endif

//#define __NR_setresuid                164
#ifdef __NR_setresuid
#ifdef L___syscall_setresuid
#define __NR___syscall_setresuid __NR_setresuid
static inline
_syscall3(int, __syscall_setresuid, __kernel_uid_t, rgid, __kernel_uid_t, egid, __kernel_uid_t, sgid);
int setresuid(uid_t ruid, uid_t euid, uid_t suid)
{
	return(__syscall_setresuid(ruid, euid, suid));
}
#endif
#endif

//#define __NR_getresuid                165
#ifdef __NR_getresuid
#ifdef L___syscall_getresuid
#define __NR___syscall_getresuid __NR_getresuid
static inline
_syscall3(int, __syscall_getresuid, __kernel_uid_t *, ruid, __kernel_uid_t *, euid, __kernel_uid_t *, suid);
int getresuid (uid_t *ruid, uid_t *euid, uid_t *suid)
{
	int result;
	__kernel_uid_t k_ruid, k_euid, k_suid;
	result = __syscall_getresuid(&k_ruid, &k_euid, &k_suid);
	if (result == 0) {
		*ruid = (uid_t) k_ruid;
		*euid = (uid_t) k_euid;
		*suid = (uid_t) k_suid;
	}
	return result;
}
#endif
#endif

//#define __NR_vm86                     166

//#define __NR_query_module             167
#ifdef L_query_module
#	ifdef __NR_query_module
		_syscall5(int, query_module, const char *, name, int, which,
				void *, buf, size_t, bufsize, size_t*, ret);
#	else
		int query_module(const char * name, int which,
					void * buf, size_t bufsize, size_t* ret)
		{
			__set_errno(ENOSYS);
			return -1;
		}
#	endif	
#endif	

//#define __NR_poll                     168
#if defined(L_poll) && defined(__NR_poll) /* uClinux 2.0 doesn't have poll */
#include <sys/poll.h>
_syscall3(int, poll, struct pollfd *, fds, unsigned long int, nfds, int, timeout);
#endif

//#define __NR_nfsservctl               169
//nfsservctl	EXTRA	nfsservctl	i:ipp	nfsservctl

//#define __NR_setresgid                170
#ifdef __NR_setresgid
#ifdef L___syscall_setresgid
#define __NR___syscall_setresgid __NR_setresgid
static inline
_syscall3(int, __syscall_setresgid, __kernel_gid_t, rgid, __kernel_gid_t, egid, __kernel_gid_t, sgid);
int setresgid(gid_t rgid, gid_t egid, gid_t sgid)
{
	return(__syscall_setresgid(rgid, egid, sgid));
}
#endif
#endif

//#define __NR_getresgid                171
#ifdef __NR_getresgid
#ifdef L___syscall_getresgid
#define __NR___syscall_getresgid __NR_getresgid
static inline
_syscall3(int, __syscall_getresgid, __kernel_gid_t *, egid, __kernel_gid_t *, rgid, __kernel_gid_t *, sgid);
int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid)
{
	int result;
	__kernel_gid_t k_rgid, k_egid, k_sgid;
	result = __syscall_getresgid(&k_rgid, &k_egid, &k_sgid);
	if (result == 0) { 
		*rgid = (gid_t) k_rgid;
		*egid = (gid_t) k_egid;
		*sgid = (gid_t) k_sgid;
	}
	return result;
}
#endif
#endif

//#define __NR_prctl                    172

//#define __NR_rt_sigreturn             173
//#define __NR_rt_sigaction             174
#ifdef __NR_rt_sigaction
#define __NR___syscall_rt_sigaction __NR_rt_sigaction
#ifdef L___syscall_rt_sigaction
#include <signal.h>
#undef sigaction
_syscall4(int, __syscall_rt_sigaction, int, signum, const struct sigaction *, act, 
		struct sigaction *, oldact, size_t, size); 
#endif
#endif

//#define __NR_rt_sigprocmask           175
#ifdef __NR_rt_sigprocmask
#define __NR___rt_sigprocmask __NR_rt_sigprocmask
#ifdef L___rt_sigprocmask
#include <signal.h>
#undef sigprocmask
_syscall4(int, __rt_sigprocmask, int, how, const sigset_t *, set, 
		sigset_t *, oldset, size_t, size);

int sigprocmask(int how, const sigset_t *set, sigset_t *oldset) 
{
	  return __rt_sigprocmask(how, set, oldset, _NSIG/8);
}
#endif
#endif

//#define __NR_rt_sigpending            176
#ifdef __NR_rt_sigpending
#define __NR___rt_sigpending __NR_rt_sigpending
#ifdef L___rt_sigpending
#include <signal.h>
#undef sigpending
_syscall2(int, __rt_sigpending, sigset_t *, set, size_t, size);

int sigpending(sigset_t *set) 
{
	return __rt_sigpending(set, _NSIG/8);
}
#endif
#endif

//#define __NR_rt_sigtimedwait          177
#ifdef L___rt_sigtimedwait
#include <signal.h>
#define __need_NULL
#include <stddef.h>
#ifdef __NR_rt_sigtimedwait
#define __NR___rt_sigtimedwait __NR_rt_sigtimedwait
_syscall4(int, __rt_sigtimedwait, const sigset_t *, set, siginfo_t *, info, 
		const struct timespec *, timeout, size_t, setsize);

int sigwaitinfo(const sigset_t *set, siginfo_t *info)
{
	return __rt_sigtimedwait (set, info, NULL, _NSIG/8);
}

int sigtimedwait (const sigset_t *set, siginfo_t *info, const struct timespec *timeout)
{
	return __rt_sigtimedwait (set, info, timeout, _NSIG/8);
}
#else
int sigwaitinfo(const sigset_t *set, siginfo_t *info)
{
	if (set==NULL)
		__set_errno (EINVAL);
	else
		__set_errno (ENOSYS);
	return -1;
}

int sigtimedwait (const sigset_t *set, siginfo_t *info, const struct timespec *timeout)
{
	if (set==NULL)
		__set_errno (EINVAL);
	else
		__set_errno (ENOSYS);
	return -1;
}
#endif
#endif

//#define __NR_rt_sigqueueinfo          178

//#define __NR_rt_sigsuspend            179
#ifdef __NR_rt_sigsuspend
#define __NR___rt_sigsuspend __NR_rt_sigsuspend
#ifdef L___rt_sigsuspend
#include <signal.h>
#undef _sigsuspend
_syscall2(int, __rt_sigsuspend, const sigset_t *, mask, size_t, size);

int sigsuspend (const sigset_t *mask)
{
	return __rt_sigsuspend(mask, _NSIG/8);
}
#endif
#endif

//#define __NR_pread                    180
// See pread_write.c

//#define __NR_pwrite                   181
// See pread_write.c

//#define __NR_chown                    182
#ifdef L___syscall_chown
#include <unistd.h>
#define __NR___syscall_chown __NR_chown
static inline
_syscall3(int, __syscall_chown, const char *, path, __kernel_uid_t, owner, __kernel_gid_t, group);
int chown(const char * path, uid_t owner, gid_t group)
{
	return(__syscall_chown(path, owner, group));
}
#endif

//#define __NR_getcwd                   183
// See getcwd.c in this directory

//#define __NR_capget                   184
#ifdef L_capget
#	ifdef __NR_capget
		_syscall2(int, capget, void*, header, void*, data);
#	else
		int capget(void* header, void* data)
		{
			__set_errno(ENOSYS);
			return -1;
		}
#	endif
#endif

//#define __NR_capset                   185
#ifdef L_capset
#	ifdef __NR_capset
		_syscall2(int, capset, void*, header, const void*, data);
#	else
		int capset(void* header, const void* data)
		{
			__set_errno(ENOSYS);
			return -1;
		}
#	endif
#endif

//#define __NR_sigaltstack              186
#ifdef __NR_sigaltstack
#ifdef L_sigaltstack
#include <signal.h>
_syscall2(int, sigaltstack, const struct sigaltstack *, ss, struct sigaltstack *, oss);
#endif
#endif

//#define __NR_sendfile                 187
#ifdef __NR_sendfile
#ifdef L_sendfile
#include <unistd.h>
#include <sys/sendfile.h>
_syscall4(ssize_t,sendfile, int, out_fd, int, in_fd, __off_t *, offset, size_t, count);
#endif
#endif

//#define __NR_getpmsg                  188

//#define __NR_putpmsg                  189

//#define __NR_vfork                    190
//See sysdeps/linux/<arch>vfork.[cS] for architecture specific implementation...

//#define __NR_ugetrlimit		191	/* SuS compliant getrlimit */
#ifdef L___ugetrlimit
#ifdef __NR_ugetrlimit
#define __NR___ugetrlimit __NR_ugetrlimit
#include <unistd.h>
#include <sys/resource.h>
_syscall2(int, __ugetrlimit, enum __rlimit_resource, resource, struct rlimit *, rlim);
int getrlimit (__rlimit_resource_t resource, struct rlimit *rlimits)
{
	return(__ugetrlimit(resource, rlimits));
}
#endif /* __NR_ugetrlimit */
#endif


//#define __NR_mmap2		192


//#define __NR_truncate64         193
//See libc/sysdeps/linux/common/truncate64.c

//#define __NR_ftruncate64        194
//See libc/sysdeps/linux/common/ftruncate64.c


//#define __NR_stat64             195
#ifdef L___syscall_stat64
#if defined __NR_stat64 && defined __UCLIBC_HAS_LFS__
#define __NR___syscall_stat64 __NR_stat64
#include <unistd.h>
#include <sys/stat.h>
#include <bits/kernel_stat.h>
#include "xstatconv.h"
_syscall2(int, __syscall_stat64, const char *, file_name, struct kernel_stat64 *, buf);
int stat64(const char * file_name, struct stat64 * buf)
{
	int result;
	struct kernel_stat64 kbuf;
	result = __syscall_stat64(file_name, &kbuf);
	if (result == 0) {
		__xstat64_conv(&kbuf, buf);
	}
	return result;
}
#endif /* __UCLIBC_HAS_LFS__ */
#endif

//#define __NR_lstat64            196
#ifdef L___syscall_lstat64
#if defined __NR_lstat64 && defined __UCLIBC_HAS_LFS__
#define __NR___syscall_lstat64 __NR_lstat64
#include <unistd.h>
#include <sys/stat.h>
#include <bits/kernel_stat.h>
#include "xstatconv.h"
_syscall2(int, __syscall_lstat64, const char *, file_name, struct kernel_stat64 *, buf);
int lstat64(const char * file_name, struct stat64 * buf)
{
	int result;
	struct kernel_stat64 kbuf;
	result = __syscall_lstat64(file_name, &kbuf);
	if (result == 0) {
		__xstat64_conv(&kbuf, buf);
	}
	return result;
}
#endif /* __UCLIBC_HAS_LFS__ */
#endif

//#define __NR_fstat64            197
#ifdef L___syscall_fstat64
#if defined __NR_fstat64 && defined __UCLIBC_HAS_LFS__
#define __NR___syscall_fstat64 __NR_fstat64
#include <unistd.h>
#include <sys/stat.h>
#include <bits/kernel_stat.h>
#include "xstatconv.h"
_syscall2(int, __syscall_fstat64, int, filedes, struct kernel_stat64 *, buf);
int fstat64(int fd, struct stat64 * buf)
{
	int result;
	struct kernel_stat64 kbuf;
	result = __syscall_fstat64(fd, &kbuf);
	if (result == 0) {
		__xstat64_conv(&kbuf, buf);
	}
	return result;
}
#endif /* __UCLIBC_HAS_LFS__ */
#endif


//#define __NR_lchown32		198
//#define __NR_getuid32		199
//#define __NR_getgid32		200
//#define __NR_geteuid32		201
//#define __NR_getegid32		202
//#define __NR_setreuid32		203
//#define __NR_setregid32		204
//#define __NR_getgroups32	205
//#define __NR_setgroups32	206
//#define __NR_fchown32		207
//#define __NR_setresuid32	208
//#define __NR_getresuid32	209
//#define __NR_setresgid32	210
//#define __NR_getresgid32	211
//#define __NR_chown32		212
//#define __NR_setuid32		213
//#define __NR_setgid32		214
//#define __NR_setfsuid32		215
//#define __NR_setfsgid32		216
//#define __NR_pivot_root		217
#ifdef __NR_pivot_root
#ifdef L_pivot_root
_syscall2(int, pivot_root, const char *, new_root, const char *, put_old);
#endif
#endif

//#define __NR_mincore		218
//#define __NR_madvise		219
//#define __NR_madvise1		219	/* delete when C lib stub is removed */

//#define __NR_getdents64		220
// See getdents64.c

//#define __NR_fcntl64		221
#ifdef L__fcntl64
#ifdef __UCLIBC_HAS_LFS__
#include <stdarg.h>
#include <fcntl.h>
#ifdef __NR_fcntl64
#define __NR__fcntl64 __NR_fcntl64
extern int _fcntl64(int fd, int cmd, long arg);

_syscall3(int, _fcntl64, int, fd, int, cmd, long, arg);

int fcntl64(int fd, int command, ...)
{
	long arg;
	va_list list;

	va_start(list, command);
	arg = va_arg(list, long);

	va_end(list);
	return _fcntl64(fd, command, arg);
}
#else
extern int _fcntl(int fd, int cmd, long arg);
int fcntl64(int fd, int command, ...)
{
	long arg;
	va_list list;

	va_start(list, command);
	arg = va_arg(list, long);

	va_end(list);
	return _fcntl(fd, command, arg);
}
#endif
#endif
#endif

//#define __NR_security		223	/* syscall for security modules */
//#define __NR_gettid		224
//#define __NR_readahead		225