diff options
| -rw-r--r-- | src/arch/aarch64/syscall.h | 155 | ||||
| -rw-r--r-- | src/syscall.h | 2 |
2 files changed, 157 insertions, 0 deletions
diff --git a/src/arch/aarch64/syscall.h b/src/arch/aarch64/syscall.h new file mode 100644 index 0000000..5387772 --- /dev/null +++ b/src/arch/aarch64/syscall.h @@ -0,0 +1,155 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef __INTERNAL__LIBURING_SYSCALL_H + #error "This file should be included from src/syscall.h (liburing)" +#endif + +#ifndef LIBURING_ARCH_AARCH64_SYSCALL_H +#define LIBURING_ARCH_AARCH64_SYSCALL_H + +#if defined(__aarch64__) + +#define __do_syscallN(...) ({ \ + __asm__ volatile ( \ + "svc 0" \ + : "=r"(x0) \ + : __VA_ARGS__ \ + : "memory", "cc"); \ + (long) x0; \ +}) + +#define __do_syscall0(__n) ({ \ + register long x8 __asm__("x8") = __n; \ + register long x0 __asm__("x0"); \ + \ + __do_syscallN("r" (x8)); \ +}) + +#define __do_syscall1(__n, __a) ({ \ + register long x8 __asm__("x8") = __n; \ + register __typeof__(__a) x0 __asm__("x0") = __a; \ + \ + __do_syscallN("r" (x8), "0" (x0)); \ +}) + +#define __do_syscall2(__n, __a, __b) ({ \ + register long x8 __asm__("x8") = __n; \ + register __typeof__(__a) x0 __asm__("x0") = __a; \ + register __typeof__(__b) x1 __asm__("x1") = __b; \ + \ + __do_syscallN("r" (x8), "0" (x0), "r" (x1)); \ +}) + +#define __do_syscall3(__n, __a, __b, __c) ({ \ + register long x8 __asm__("x8") = __n; \ + register __typeof__(__a) x0 __asm__("x0") = __a; \ + register __typeof__(__b) x1 __asm__("x1") = __b; \ + register __typeof__(__c) x2 __asm__("x2") = __c; \ + \ + __do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2)); \ +}) + +#define __do_syscall4(__n, __a, __b, __c, __d) ({ \ + register long x8 __asm__("x8") = __n; \ + register __typeof__(__a) x0 __asm__("x0") = __a; \ + register __typeof__(__b) x1 __asm__("x1") = __b; \ + register __typeof__(__c) x2 __asm__("x2") = __c; \ + register __typeof__(__d) x3 __asm__("x3") = __d; \ + \ + __do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2), "r" (x3));\ +}) + +#define __do_syscall5(__n, __a, __b, __c, __d, __e) ({ \ + register long x8 __asm__("x8") = __n; \ + register __typeof__(__a) x0 __asm__("x0") = __a; \ + register __typeof__(__b) x1 __asm__("x1") = __b; \ + register __typeof__(__c) x2 __asm__("x2") = __c; \ + register __typeof__(__d) x3 __asm__("x3") = __d; \ + register __typeof__(__e) x4 __asm__("x4") = __e; \ + \ + __do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2), "r" (x3), \ + "r"(x4)); \ +}) + +#define __do_syscall6(__n, __a, __b, __c, __d, __e, __f) ({ \ + register long x8 __asm__("x8") = __n; \ + register __typeof__(__a) x0 __asm__("x0") = __a; \ + register __typeof__(__b) x1 __asm__("x1") = __b; \ + register __typeof__(__c) x2 __asm__("x2") = __c; \ + register __typeof__(__d) x3 __asm__("x3") = __d; \ + register __typeof__(__e) x4 __asm__("x4") = __e; \ + register __typeof__(__f) x5 __asm__("x5") = __f; \ + \ + __do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2), "r" (x3), \ + "r" (x4), "r"(x5)); \ +}) + + +static inline void *__sys_mmap(void *addr, size_t length, int prot, int flags, + int fd, off_t offset) +{ + return (void *) __do_syscall6(__NR_mmap, addr, length, prot, flags, fd, + offset); +} + +static inline int __sys_munmap(void *addr, size_t length) +{ + return (int) __do_syscall2(__NR_munmap, addr, length); +} + +static inline int __sys_madvise(void *addr, size_t length, int advice) +{ + return (int) __do_syscall3(__NR_madvise, addr, length, advice); +} + +static inline int __sys_getrlimit(int resource, struct rlimit *rlim) +{ + return (int) __do_syscall2(__NR_getrlimit, resource, rlim); +} + +static inline int __sys_setrlimit(int resource, const struct rlimit *rlim) +{ + return (int) __do_syscall2(__NR_setrlimit, resource, rlim); +} + +static inline int __sys_close(int fd) +{ + return (int) __do_syscall1(__NR_close, fd); +} + +static inline int ____sys_io_uring_register(int fd, unsigned opcode, + const void *arg, unsigned nr_args) +{ + return (int) __do_syscall4(__NR_io_uring_register, fd, opcode, arg, + nr_args); +} + +static inline int ____sys_io_uring_setup(unsigned entries, + struct io_uring_params *p) +{ + return (int) __do_syscall2(__NR_io_uring_setup, entries, p); +} + +static inline int ____sys_io_uring_enter2(int fd, unsigned to_submit, + unsigned min_complete, unsigned flags, + sigset_t *sig, int sz) +{ + return (int) __do_syscall6(__NR_io_uring_enter, fd, to_submit, + min_complete, flags, sig, sz); +} + +static inline int ____sys_io_uring_enter(int fd, unsigned to_submit, + unsigned min_complete, unsigned flags, + sigset_t *sig) +{ + return ____sys_io_uring_enter2(fd, to_submit, min_complete, flags, sig, + _NSIG / 8); +} + +#else /* #if defined(__aarch64__) */ + +#include "../generic/syscall.h" + +#endif /* #if defined(__aarch64__) */ + +#endif /* #ifndef LIBURING_ARCH_AARCH64_SYSCALL_H */ diff --git a/src/syscall.h b/src/syscall.h index beb357e..c05d132 100644 --- a/src/syscall.h +++ b/src/syscall.h @@ -73,6 +73,8 @@ static inline bool IS_ERR(const void *ptr) #define __INTERNAL__LIBURING_SYSCALL_H #if defined(__x86_64__) || defined(__i386__) #include "arch/x86/syscall.h" +#elif defined(__aarch64__) + #include "arch/aarch64/syscall.h" #else /* * We don't have native syscall wrappers |