| Jiaxun Yang | 8c519dc | 2024-06-18 14:56:05 +0100 | [diff] [blame] | 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 | |
| 56 | static int errno; |
| 57 | |
| 58 | static 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 */ |