/**************************************************************************** * arch/x86_64/include/intel64/syscall.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /* This file should never be included directed but, rather, only indirectly * through include/syscall.h or include/sys/sycall.h */ #ifndef __ARCH_X86_64_INCLUDE_INTEL64_SYSCALL_H #define __ARCH_X86_64_INCLUDE_INTEL64_SYSCALL_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Public Types ****************************************************************************/ /**************************************************************************** * Public Data ****************************************************************************/ /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #ifndef __ASSEMBLY__ #ifdef __cplusplus #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif void enable_syscall(void); void syscall_entry(void); uint64_t syscall_handler(unsigned long nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3, uintptr_t parm4, uintptr_t parm5, uintptr_t parm6); uint64_t linux_interface(unsigned long nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3, uintptr_t parm4, uintptr_t parm5, uintptr_t parm6); /* SWI with SYS_ call number and six parameters */ static inline uintptr_t sys_call6(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3, uintptr_t parm4, uintptr_t parm5, uintptr_t parm6); /* SWI with SYS_ call number and no parameters */ static inline uintptr_t sys_call0(unsigned int nbr) { return sys_call6(nbr, 0, 0, 0, 0, 0, 0); } /* SWI with SYS_ call number and one parameter */ static inline uintptr_t sys_call1(unsigned int nbr, uintptr_t parm1) { return sys_call6(nbr, parm1, 0, 0, 0, 0, 0); } /* SWI with SYS_ call number and two parameters */ static inline uintptr_t sys_call2(unsigned int nbr, uintptr_t parm1, uintptr_t parm2) { return sys_call6(nbr, parm1, parm2, 0, 0, 0, 0); } /* SWI with SYS_ call number and three parameters */ static inline uintptr_t sys_call3(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3) { return sys_call6(nbr, parm1, parm2, parm3, 0, 0, 0); } /* SWI with SYS_ call number and four parameters */ static inline uintptr_t sys_call4(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3, uintptr_t parm4) { return sys_call6(nbr, parm1, parm2, parm3, parm4, 0, 0); } /* SWI with SYS_ call number and five parameters */ static inline uintptr_t sys_call5(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3, uintptr_t parm4, uintptr_t parm5) { return sys_call6(nbr, parm1, parm2, parm3, parm4, parm5, 0); } static inline uintptr_t sys_call6(unsigned int nbr, uintptr_t parm1, uintptr_t parm2, uintptr_t parm3, uintptr_t parm4, uintptr_t parm5, uintptr_t parm6) { register uint64_t reg0 __asm__("rax") = (uint64_t)(nbr); register uint64_t reg1 __asm__("rdi") = (uint64_t)(parm1); register uint64_t reg2 __asm__("rsi") = (uint64_t)(parm2); register uint64_t reg3 __asm__("rdx") = (uint64_t)(parm3); register uint64_t reg4 __asm__("r10") = (uint64_t)(parm4); register uint64_t reg5 __asm__("r8") = (uint64_t)(parm5); register uint64_t reg6 __asm__("r9") = (uint64_t)(parm6); __asm__ __volatile__ ( "syscall" : "=r"(reg0) : "r"(reg0), "r"(reg1), "r"(reg2), "r"(reg3), "r"(reg4), "r"(reg5), "r"(reg6) : "memory" ); return reg0; } #undef EXTERN #ifdef __cplusplus } #endif #endif #endif /* __ARCH_X86_64_INCLUDE_INTEL64_SYSCALL_H */