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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_SYSCALL_H
#define _SYS_SYSCALL_H
#if !defined(__ASSEMBLER__)
#include <stdint.h>
#endif
#define SYS_exit 1
#define SYS_write 2
#define SYS_open 3
#define SYS_close 4
#define SYS_read 5
#define SYS_lseek 6
#define SYS_mmap 7
#define SYS_munmap 8
#define SYS_ioctl 9
#if !defined(__ASSEMBLER__)
__attribute__((__always_inline__))
static inline long
syscall0(uint64_t code)
{
volatile long ret;
asm volatile("int $0x80" : "=a"(ret) : "a"(code));
return ret;
}
__attribute__((__always_inline__))
static inline long
syscall1(uint64_t code, uint64_t arg0)
{
volatile long ret;
asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0) : "memory");
return ret;
}
__attribute__((__always_inline__))
static long inline
syscall2(uint64_t code, uint64_t arg0, uint64_t arg1)
{
volatile long ret;
asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1) : "memory");
return ret;
}
__attribute__((__always_inline__))
static inline long
syscall3(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2)
{
volatile long ret;
asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2) : "memory");
return ret;
}
__attribute__((__always_inline__))
static inline long
syscall4(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3)
{
volatile long ret;
register uint64_t _arg3 asm("r10") = arg3;
asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3) : "memory");
return ret;
}
__attribute__((__always_inline__))
static inline long
syscall5(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4)
{
volatile long ret;
register uint64_t _arg3 asm("r10") = arg3;
register uint64_t _arg4 asm("r9") = arg4;
asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3), "r"(_arg4) : "memory");
return ret;
}
__attribute__((__always_inline__))
static inline long
syscall6(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5) {
volatile long ret;
register uint64_t _arg3 asm("r10") = arg3;
register uint64_t _arg4 asm("r9") = arg4;
register uint64_t _arg5 asm("r8") = arg5;
asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5) : "memory");
return ret;
}
#define _SYSCALL_N(a0, a1, a2, a3, a4, a5, a6, name, ...) \
name
#define syscall(...) \
_SYSCALL_N(__VA_ARGS__, syscall6, syscall5, \
syscall4, syscall3, syscall2, syscall1, \
syscall0)(__VA_ARGS__)
#endif /* !defined(__ASSEMBLER__) */
#endif /* !_SYS_SYSCALL_H */
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