compat_wrap.c

#include <linux/syscalls.h>
#include <linux/compat.h>

#define COMPAT_SYSCALL_WRAP1(name, ...) \
	COMPAT_SYSCALL_WRAPx(1, _##name, __VA_ARGS__)
#define COMPAT_SYSCALL_WRAP2(name, ...) \
	COMPAT_SYSCALL_WRAPx(2, _##name, __VA_ARGS__)
#define COMPAT_SYSCALL_WRAP3(name, ...) \
	COMPAT_SYSCALL_WRAPx(3, _##name, __VA_ARGS__)
#define COMPAT_SYSCALL_WRAP4(name, ...) \
	COMPAT_SYSCALL_WRAPx(4, _##name, __VA_ARGS__)
#define COMPAT_SYSCALL_WRAP5(name, ...) \
	COMPAT_SYSCALL_WRAPx(5, _##name, __VA_ARGS__)
#define COMPAT_SYSCALL_WRAP6(name, ...) \
	COMPAT_SYSCALL_WRAPx(6, _##name, __VA_ARGS__)

#define COMPAT_SYSCALL_WRAPx(x, name, ...)					\
	asmlinkage long compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
	asmlinkage long compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
	{									\
		return sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));		\
	}

COMPAT_SYSCALL_WRAP1(exit, int, error_code);
COMPAT_SYSCALL_WRAP1(close, unsigned int, fd);
COMPAT_SYSCALL_WRAP2(creat, const char __user *, pathname, umode_t, mode);
COMPAT_SYSCALL_WRAP2(link, const char __user *, oldname, const char __user *, newname);
COMPAT_SYSCALL_WRAP1(unlink, const char __user *, pathname);
COMPAT_SYSCALL_WRAP1(chdir, const char __user *, filename);
COMPAT_SYSCALL_WRAP3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev);
COMPAT_SYSCALL_WRAP2(chmod, const char __user *, filename, umode_t, mode);
COMPAT_SYSCALL_WRAP1(oldumount, char __user *, name);
COMPAT_SYSCALL_WRAP1(alarm, unsigned int, seconds);
COMPAT_SYSCALL_WRAP2(access, const char __user *, filename, int, mode);
COMPAT_SYSCALL_WRAP1(nice, int, increment);
COMPAT_SYSCALL_WRAP2(kill, int, pid, int, sig);
COMPAT_SYSCALL_WRAP2(rename, const char __user *, oldname, const char __user *, newname);
COMPAT_SYSCALL_WRAP2(mkdir, const char __user *, pathname, umode_t, mode);
COMPAT_SYSCALL_WRAP1(rmdir, const char __user *, pathname);
COMPAT_SYSCALL_WRAP1(dup, unsigned int, fildes);
COMPAT_SYSCALL_WRAP1(pipe, int __user *, fildes);
COMPAT_SYSCALL_WRAP1(brk, compat_ulong_t, brk);
COMPAT_SYSCALL_WRAP2(signal, int, sig, __sighandler_t, handler);
COMPAT_SYSCALL_WRAP1(acct, const char __user *, name);
COMPAT_SYSCALL_WRAP2(umount, char __user *, name, int, flags);
COMPAT_SYSCALL_WRAP2(setpgid, compat_pid_t, pid, compat_pid_t, pgid);
COMPAT_SYSCALL_WRAP1(umask, int, mask);
COMPAT_SYSCALL_WRAP1(chroot, const char __user *, filename);
COMPAT_SYSCALL_WRAP2(dup2, unsigned int, oldfd, unsigned int, newfd);
COMPAT_SYSCALL_WRAP3(sigsuspend, int, unused1, int, unused2, compat_old_sigset_t, mask);
COMPAT_SYSCALL_WRAP2(sethostname, char __user *, name, int, len);
COMPAT_SYSCALL_WRAP2(symlink, const char __user *, old, const char __user *, new);
COMPAT_SYSCALL_WRAP3(readlink, const char __user *, path, char __user *, buf, int, bufsiz);
COMPAT_SYSCALL_WRAP1(uselib, const char __user *, library);
COMPAT_SYSCALL_WRAP2(swapon, const char __user *, specialfile, int, swap_flags);