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104 lines
2.4 KiB
104 lines
2.4 KiB
/* SPDX-License-Identifier: MIT */
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#ifndef LIBURING_SYSCALL_H
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#define LIBURING_SYSCALL_H
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#include <errno.h>
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#include <signal.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <sys/mman.h>
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#include <sys/syscall.h>
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#include <sys/resource.h>
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#include <liburing.h>
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#ifdef __alpha__
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/*
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* alpha and mips are exception, other architectures have
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* common numbers for new system calls.
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*/
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#ifndef __NR_io_uring_setup
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#define __NR_io_uring_setup 535
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#endif
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#ifndef __NR_io_uring_enter
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#define __NR_io_uring_enter 536
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#endif
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#ifndef __NR_io_uring_register
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#define __NR_io_uring_register 537
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#endif
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#elif defined __mips__
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#ifndef __NR_io_uring_setup
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#define __NR_io_uring_setup (__NR_Linux + 425)
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#endif
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#ifndef __NR_io_uring_enter
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#define __NR_io_uring_enter (__NR_Linux + 426)
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#endif
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#ifndef __NR_io_uring_register
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#define __NR_io_uring_register (__NR_Linux + 427)
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#endif
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#else /* !__alpha__ and !__mips__ */
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#ifndef __NR_io_uring_setup
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#define __NR_io_uring_setup 425
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#endif
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#ifndef __NR_io_uring_enter
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#define __NR_io_uring_enter 426
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#endif
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#ifndef __NR_io_uring_register
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#define __NR_io_uring_register 427
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#endif
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#endif
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/*
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* Don't put this below the #include "arch/$arch/syscall.h", that
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* file may need it.
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*/
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struct io_uring_params;
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static inline void *ERR_PTR(intptr_t n)
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{
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return (void *) n;
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}
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static inline intptr_t PTR_ERR(const void *ptr)
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{
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return (intptr_t) ptr;
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}
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static inline bool IS_ERR(const void *ptr)
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{
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return uring_unlikely((uintptr_t) ptr >= (uintptr_t) -4095UL);
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}
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#define __INTERNAL__LIBURING_SYSCALL_H
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#if defined(__x86_64__) || defined(__i386__)
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#include "arch/x86/syscall.h"
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#elif defined(__aarch64__)
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#include "arch/aarch64/syscall.h"
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#else
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/*
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* We don't have native syscall wrappers
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* for this arch. Must use libc!
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*/
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#ifdef CONFIG_NOLIBC
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#error "This arch doesn't support building liburing without libc"
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#endif
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/* libc syscall wrappers. */
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#include "arch/generic/syscall.h"
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#endif
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#undef __INTERNAL__LIBURING_SYSCALL_H
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/*
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* For backward compatibility.
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* (these __sys* functions always use libc, see syscall.c)
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*/
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int __sys_io_uring_setup(unsigned entries, struct io_uring_params *p);
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int __sys_io_uring_enter(int fd, unsigned to_submit, unsigned min_complete,
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unsigned flags, sigset_t *sig);
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int __sys_io_uring_enter2(int fd, unsigned to_submit, unsigned min_complete,
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unsigned flags, sigset_t *sig, int sz);
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int __sys_io_uring_register(int fd, unsigned int opcode, const void *arg,
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unsigned int nr_args);
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#endif
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