simcall-iss.h (2134B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright (C) 2021 Cadence Design Systems Inc. */ 3 4#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_ISS_H 5#define _XTENSA_PLATFORM_ISS_SIMCALL_ISS_H 6 7/* 8 * System call like services offered by the simulator host. 9 */ 10 11#define SYS_nop 0 /* unused */ 12#define SYS_exit 1 /*x*/ 13#define SYS_fork 2 14#define SYS_read 3 /*x*/ 15#define SYS_write 4 /*x*/ 16#define SYS_open 5 /*x*/ 17#define SYS_close 6 /*x*/ 18#define SYS_rename 7 /*x 38 - waitpid */ 19#define SYS_creat 8 /*x*/ 20#define SYS_link 9 /*x (not implemented on WIN32) */ 21#define SYS_unlink 10 /*x*/ 22#define SYS_execv 11 /* n/a - execve */ 23#define SYS_execve 12 /* 11 - chdir */ 24#define SYS_pipe 13 /* 42 - time */ 25#define SYS_stat 14 /* 106 - mknod */ 26#define SYS_chmod 15 27#define SYS_chown 16 /* 202 - lchown */ 28#define SYS_utime 17 /* 30 - break */ 29#define SYS_wait 18 /* n/a - oldstat */ 30#define SYS_lseek 19 /*x*/ 31#define SYS_getpid 20 32#define SYS_isatty 21 /* n/a - mount */ 33#define SYS_fstat 22 /* 108 - oldumount */ 34#define SYS_time 23 /* 13 - setuid */ 35#define SYS_gettimeofday 24 /*x 78 - getuid (not implemented on WIN32) */ 36#define SYS_times 25 /*X 43 - stime (Xtensa-specific implementation) */ 37#define SYS_socket 26 38#define SYS_sendto 27 39#define SYS_recvfrom 28 40#define SYS_select_one 29 /* not compatible select, one file descriptor at the time */ 41#define SYS_bind 30 42#define SYS_ioctl 31 43 44#define SYS_iss_argc 1000 /* returns value of argc */ 45#define SYS_iss_argv_size 1001 /* bytes needed for argv & arg strings */ 46#define SYS_iss_set_argv 1002 /* saves argv & arg strings at given addr */ 47 48/* 49 * SYS_select_one specifiers 50 */ 51 52#define XTISS_SELECT_ONE_READ 1 53#define XTISS_SELECT_ONE_WRITE 2 54#define XTISS_SELECT_ONE_EXCEPT 3 55 56static int errno; 57 58static inline int __simc(int a, int b, int c, int d) 59{ 60 register int a1 asm("a2") = a; 61 register int b1 asm("a3") = b; 62 register int c1 asm("a4") = c; 63 register int d1 asm("a5") = d; 64 __asm__ __volatile__ ( 65 "simcall\n" 66 : "+r"(a1), "+r"(b1) 67 : "r"(c1), "r"(d1) 68 : "memory"); 69 errno = b1; 70 return a1; 71} 72 73#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_ISS_H */