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-rw-r--r--include/linux/syscalls.h169
1 files changed, 117 insertions, 52 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 18d0a243a7b3..16875f89e6a7 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -54,6 +54,7 @@ struct compat_stat;
54struct compat_timeval; 54struct compat_timeval;
55struct robust_list_head; 55struct robust_list_head;
56struct getcpu_cache; 56struct getcpu_cache;
57struct old_linux_dirent;
57 58
58#include <linux/types.h> 59#include <linux/types.h>
59#include <linux/aio_abi.h> 60#include <linux/aio_abi.h>
@@ -65,6 +66,74 @@ struct getcpu_cache;
65#include <linux/quota.h> 66#include <linux/quota.h>
66#include <linux/key.h> 67#include <linux/key.h>
67 68
69#define __SC_DECL1(t1, a1) t1 a1
70#define __SC_DECL2(t2, a2, ...) t2 a2, __SC_DECL1(__VA_ARGS__)
71#define __SC_DECL3(t3, a3, ...) t3 a3, __SC_DECL2(__VA_ARGS__)
72#define __SC_DECL4(t4, a4, ...) t4 a4, __SC_DECL3(__VA_ARGS__)
73#define __SC_DECL5(t5, a5, ...) t5 a5, __SC_DECL4(__VA_ARGS__)
74#define __SC_DECL6(t6, a6, ...) t6 a6, __SC_DECL5(__VA_ARGS__)
75
76#define __SC_LONG1(t1, a1) long a1
77#define __SC_LONG2(t2, a2, ...) long a2, __SC_LONG1(__VA_ARGS__)
78#define __SC_LONG3(t3, a3, ...) long a3, __SC_LONG2(__VA_ARGS__)
79#define __SC_LONG4(t4, a4, ...) long a4, __SC_LONG3(__VA_ARGS__)
80#define __SC_LONG5(t5, a5, ...) long a5, __SC_LONG4(__VA_ARGS__)
81#define __SC_LONG6(t6, a6, ...) long a6, __SC_LONG5(__VA_ARGS__)
82
83#define __SC_CAST1(t1, a1) (t1) a1
84#define __SC_CAST2(t2, a2, ...) (t2) a2, __SC_CAST1(__VA_ARGS__)
85#define __SC_CAST3(t3, a3, ...) (t3) a3, __SC_CAST2(__VA_ARGS__)
86#define __SC_CAST4(t4, a4, ...) (t4) a4, __SC_CAST3(__VA_ARGS__)
87#define __SC_CAST5(t5, a5, ...) (t5) a5, __SC_CAST4(__VA_ARGS__)
88#define __SC_CAST6(t6, a6, ...) (t6) a6, __SC_CAST5(__VA_ARGS__)
89
90#define __SC_TEST(type) BUILD_BUG_ON(sizeof(type) > sizeof(long))
91#define __SC_TEST1(t1, a1) __SC_TEST(t1)
92#define __SC_TEST2(t2, a2, ...) __SC_TEST(t2); __SC_TEST1(__VA_ARGS__)
93#define __SC_TEST3(t3, a3, ...) __SC_TEST(t3); __SC_TEST2(__VA_ARGS__)
94#define __SC_TEST4(t4, a4, ...) __SC_TEST(t4); __SC_TEST3(__VA_ARGS__)
95#define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__)
96#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
97
98#define SYSCALL_DEFINE0(name) asmlinkage long sys_##name(void)
99#define SYSCALL_DEFINE1(...) SYSCALL_DEFINEx(1, __VA_ARGS__)
100#define SYSCALL_DEFINE2(...) SYSCALL_DEFINEx(2, __VA_ARGS__)
101#define SYSCALL_DEFINE3(...) SYSCALL_DEFINEx(3, __VA_ARGS__)
102#define SYSCALL_DEFINE4(...) SYSCALL_DEFINEx(4, __VA_ARGS__)
103#define SYSCALL_DEFINE5(...) SYSCALL_DEFINEx(5, __VA_ARGS__)
104#define SYSCALL_DEFINE6(...) SYSCALL_DEFINEx(6, __VA_ARGS__)
105
106#ifdef CONFIG_PPC64
107#define SYSCALL_ALIAS(alias, name) \
108 asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n" \
109 "\t.globl ." #alias "\n\t.set ." #alias ", ." #name)
110#else
111#define SYSCALL_ALIAS(alias, name) \
112 asm ("\t.globl " #alias "\n\t.set " #alias ", " #name)
113#endif
114
115#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS
116
117#define SYSCALL_DEFINE(name) static inline long SYSC_##name
118#define SYSCALL_DEFINEx(x, name, ...) \
119 asmlinkage long sys_##name(__SC_DECL##x(__VA_ARGS__)); \
120 static inline long SYSC_##name(__SC_DECL##x(__VA_ARGS__)); \
121 asmlinkage long SyS_##name(__SC_LONG##x(__VA_ARGS__)) \
122 { \
123 __SC_TEST##x(__VA_ARGS__); \
124 return (long) SYSC_##name(__SC_CAST##x(__VA_ARGS__)); \
125 } \
126 SYSCALL_ALIAS(sys_##name, SyS_##name); \
127 static inline long SYSC_##name(__SC_DECL##x(__VA_ARGS__))
128
129#else /* CONFIG_HAVE_SYSCALL_WRAPPERS */
130
131#define SYSCALL_DEFINE(name) asmlinkage long sys_##name
132#define SYSCALL_DEFINEx(x, name, ...) \
133 asmlinkage long sys_##name(__SC_DECL##x(__VA_ARGS__))
134
135#endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */
136
68asmlinkage long sys_time(time_t __user *tloc); 137asmlinkage long sys_time(time_t __user *tloc);
69asmlinkage long sys_stime(time_t __user *tptr); 138asmlinkage long sys_stime(time_t __user *tptr);
70asmlinkage long sys_gettimeofday(struct timeval __user *tv, 139asmlinkage long sys_gettimeofday(struct timeval __user *tv,
@@ -77,7 +146,7 @@ asmlinkage long sys_times(struct tms __user *tbuf);
77 146
78asmlinkage long sys_gettid(void); 147asmlinkage long sys_gettid(void);
79asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp); 148asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
80asmlinkage unsigned long sys_alarm(unsigned int seconds); 149asmlinkage long sys_alarm(unsigned int seconds);
81asmlinkage long sys_getpid(void); 150asmlinkage long sys_getpid(void);
82asmlinkage long sys_getppid(void); 151asmlinkage long sys_getppid(void);
83asmlinkage long sys_getuid(void); 152asmlinkage long sys_getuid(void);
@@ -166,7 +235,7 @@ asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
166 unsigned long flags); 235 unsigned long flags);
167 236
168asmlinkage long sys_exit(int error_code); 237asmlinkage long sys_exit(int error_code);
169asmlinkage void sys_exit_group(int error_code); 238asmlinkage long sys_exit_group(int error_code);
170asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 239asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
171 int options, struct rusage __user *ru); 240 int options, struct rusage __user *ru);
172asmlinkage long sys_waitid(int which, pid_t pid, 241asmlinkage long sys_waitid(int which, pid_t pid,
@@ -196,7 +265,7 @@ asmlinkage long sys_tkill(int pid, int sig);
196asmlinkage long sys_rt_sigqueueinfo(int pid, int sig, siginfo_t __user *uinfo); 265asmlinkage long sys_rt_sigqueueinfo(int pid, int sig, siginfo_t __user *uinfo);
197asmlinkage long sys_sgetmask(void); 266asmlinkage long sys_sgetmask(void);
198asmlinkage long sys_ssetmask(int newmask); 267asmlinkage long sys_ssetmask(int newmask);
199asmlinkage unsigned long sys_signal(int sig, __sighandler_t handler); 268asmlinkage long sys_signal(int sig, __sighandler_t handler);
200asmlinkage long sys_pause(void); 269asmlinkage long sys_pause(void);
201 270
202asmlinkage long sys_sync(void); 271asmlinkage long sys_sync(void);
@@ -246,29 +315,29 @@ asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
246 const void __user *value, size_t size, int flags); 315 const void __user *value, size_t size, int flags);
247asmlinkage long sys_fsetxattr(int fd, const char __user *name, 316asmlinkage long sys_fsetxattr(int fd, const char __user *name,
248 const void __user *value, size_t size, int flags); 317 const void __user *value, size_t size, int flags);
249asmlinkage ssize_t sys_getxattr(const char __user *path, const char __user *name, 318asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
250 void __user *value, size_t size); 319 void __user *value, size_t size);
251asmlinkage ssize_t sys_lgetxattr(const char __user *path, const char __user *name, 320asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
252 void __user *value, size_t size); 321 void __user *value, size_t size);
253asmlinkage ssize_t sys_fgetxattr(int fd, const char __user *name, 322asmlinkage long sys_fgetxattr(int fd, const char __user *name,
254 void __user *value, size_t size); 323 void __user *value, size_t size);
255asmlinkage ssize_t sys_listxattr(const char __user *path, char __user *list, 324asmlinkage long sys_listxattr(const char __user *path, char __user *list,
256 size_t size); 325 size_t size);
257asmlinkage ssize_t sys_llistxattr(const char __user *path, char __user *list, 326asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
258 size_t size); 327 size_t size);
259asmlinkage ssize_t sys_flistxattr(int fd, char __user *list, size_t size); 328asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
260asmlinkage long sys_removexattr(const char __user *path, 329asmlinkage long sys_removexattr(const char __user *path,
261 const char __user *name); 330 const char __user *name);
262asmlinkage long sys_lremovexattr(const char __user *path, 331asmlinkage long sys_lremovexattr(const char __user *path,
263 const char __user *name); 332 const char __user *name);
264asmlinkage long sys_fremovexattr(int fd, const char __user *name); 333asmlinkage long sys_fremovexattr(int fd, const char __user *name);
265 334
266asmlinkage unsigned long sys_brk(unsigned long brk); 335asmlinkage long sys_brk(unsigned long brk);
267asmlinkage long sys_mprotect(unsigned long start, size_t len, 336asmlinkage long sys_mprotect(unsigned long start, size_t len,
268 unsigned long prot); 337 unsigned long prot);
269asmlinkage unsigned long sys_mremap(unsigned long addr, 338asmlinkage long sys_mremap(unsigned long addr,
270 unsigned long old_len, unsigned long new_len, 339 unsigned long old_len, unsigned long new_len,
271 unsigned long flags, unsigned long new_addr); 340 unsigned long flags, unsigned long new_addr);
272asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 341asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
273 unsigned long prot, unsigned long pgoff, 342 unsigned long prot, unsigned long pgoff,
274 unsigned long flags); 343 unsigned long flags);
@@ -321,10 +390,10 @@ asmlinkage long sys_io_submit(aio_context_t, long,
321 struct iocb __user * __user *); 390 struct iocb __user * __user *);
322asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 391asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
323 struct io_event __user *result); 392 struct io_event __user *result);
324asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, 393asmlinkage long sys_sendfile(int out_fd, int in_fd,
325 off_t __user *offset, size_t count); 394 off_t __user *offset, size_t count);
326asmlinkage ssize_t sys_sendfile64(int out_fd, int in_fd, 395asmlinkage long sys_sendfile64(int out_fd, int in_fd,
327 loff_t __user *offset, size_t count); 396 loff_t __user *offset, size_t count);
328asmlinkage long sys_readlink(const char __user *path, 397asmlinkage long sys_readlink(const char __user *path,
329 char __user *buf, int bufsiz); 398 char __user *buf, int bufsiz);
330asmlinkage long sys_creat(const char __user *pathname, int mode); 399asmlinkage long sys_creat(const char __user *pathname, int mode);
@@ -368,26 +437,25 @@ asmlinkage long sys_utime(char __user *filename,
368 struct utimbuf __user *times); 437 struct utimbuf __user *times);
369asmlinkage long sys_utimes(char __user *filename, 438asmlinkage long sys_utimes(char __user *filename,
370 struct timeval __user *utimes); 439 struct timeval __user *utimes);
371asmlinkage off_t sys_lseek(unsigned int fd, off_t offset, 440asmlinkage long sys_lseek(unsigned int fd, off_t offset,
372 unsigned int origin); 441 unsigned int origin);
373asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 442asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
374 unsigned long offset_low, loff_t __user *result, 443 unsigned long offset_low, loff_t __user *result,
375 unsigned int origin); 444 unsigned int origin);