1 /* SPDX-License-Identifier: MIT */
2
3 #ifndef LIBURING_ARCH_SYSCALL_DEFS_H
4 #define LIBURING_ARCH_SYSCALL_DEFS_H
5
6 #include <fcntl.h>
7
__sys_open(const char * pathname,int flags,mode_t mode)8 static inline int __sys_open(const char *pathname, int flags, mode_t mode)
9 {
10 /*
11 * Some architectures don't have __NR_open, but __NR_openat.
12 */
13 #ifdef __NR_open
14 return (int) __do_syscall3(__NR_open, pathname, flags, mode);
15 #else
16 return (int) __do_syscall4(__NR_openat, AT_FDCWD, pathname, flags, mode);
17 #endif
18 }
19
__sys_read(int fd,void * buffer,size_t size)20 static inline ssize_t __sys_read(int fd, void *buffer, size_t size)
21 {
22 return (ssize_t) __do_syscall3(__NR_read, fd, buffer, size);
23 }
24
__sys_mmap(void * addr,size_t length,int prot,int flags,int fd,off_t offset)25 static inline void *__sys_mmap(void *addr, size_t length, int prot, int flags,
26 int fd, off_t offset)
27 {
28 int nr;
29
30 #if defined(__NR_mmap2)
31 nr = __NR_mmap2;
32 offset >>= 12;
33 #else
34 nr = __NR_mmap;
35 #endif
36 return (void *) __do_syscall6(nr, addr, length, prot, flags, fd, offset);
37 }
38
__sys_munmap(void * addr,size_t length)39 static inline int __sys_munmap(void *addr, size_t length)
40 {
41 return (int) __do_syscall2(__NR_munmap, addr, length);
42 }
43
__sys_madvise(void * addr,size_t length,int advice)44 static inline int __sys_madvise(void *addr, size_t length, int advice)
45 {
46 return (int) __do_syscall3(__NR_madvise, addr, length, advice);
47 }
48
__sys_getrlimit(int resource,struct rlimit * rlim)49 static inline int __sys_getrlimit(int resource, struct rlimit *rlim)
50 {
51 return (int) __do_syscall2(__NR_getrlimit, resource, rlim);
52 }
53
__sys_setrlimit(int resource,const struct rlimit * rlim)54 static inline int __sys_setrlimit(int resource, const struct rlimit *rlim)
55 {
56 return (int) __do_syscall2(__NR_setrlimit, resource, rlim);
57 }
58
__sys_close(int fd)59 static inline int __sys_close(int fd)
60 {
61 return (int) __do_syscall1(__NR_close, fd);
62 }
63
__sys_io_uring_register(unsigned int fd,unsigned int opcode,const void * arg,unsigned int nr_args)64 static inline int __sys_io_uring_register(unsigned int fd, unsigned int opcode,
65 const void *arg, unsigned int nr_args)
66 {
67 return (int) __do_syscall4(__NR_io_uring_register, fd, opcode, arg,
68 nr_args);
69 }
70
__sys_io_uring_setup(unsigned int entries,struct io_uring_params * p)71 static inline int __sys_io_uring_setup(unsigned int entries,
72 struct io_uring_params *p)
73 {
74 return (int) __do_syscall2(__NR_io_uring_setup, entries, p);
75 }
76
__sys_io_uring_enter2(unsigned int fd,unsigned int to_submit,unsigned int min_complete,unsigned int flags,sigset_t * sig,size_t sz)77 static inline int __sys_io_uring_enter2(unsigned int fd, unsigned int to_submit,
78 unsigned int min_complete,
79 unsigned int flags, sigset_t *sig,
80 size_t sz)
81 {
82 return (int) __do_syscall6(__NR_io_uring_enter, fd, to_submit,
83 min_complete, flags, sig, sz);
84 }
85
__sys_io_uring_enter(unsigned int fd,unsigned int to_submit,unsigned int min_complete,unsigned int flags,sigset_t * sig)86 static inline int __sys_io_uring_enter(unsigned int fd, unsigned int to_submit,
87 unsigned int min_complete,
88 unsigned int flags, sigset_t *sig)
89 {
90 return __sys_io_uring_enter2(fd, to_submit, min_complete, flags, sig,
91 _NSIG / 8);
92 }
93
94 #endif
95