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140 lines
3.4 KiB
140 lines
3.4 KiB
/* |
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* include/asm-xtensa/platform-iss/simcall.h |
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* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2001 Tensilica Inc. |
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* Copyright (C) 2017 Cadence Design Systems Inc. |
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*/ |
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#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_H |
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#define _XTENSA_PLATFORM_ISS_SIMCALL_H |
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/* |
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* System call like services offered by the simulator host. |
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*/ |
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#define SYS_nop 0 /* unused */ |
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#define SYS_exit 1 /*x*/ |
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#define SYS_fork 2 |
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#define SYS_read 3 /*x*/ |
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#define SYS_write 4 /*x*/ |
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#define SYS_open 5 /*x*/ |
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#define SYS_close 6 /*x*/ |
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#define SYS_rename 7 /*x 38 - waitpid */ |
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#define SYS_creat 8 /*x*/ |
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#define SYS_link 9 /*x (not implemented on WIN32) */ |
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#define SYS_unlink 10 /*x*/ |
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#define SYS_execv 11 /* n/a - execve */ |
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#define SYS_execve 12 /* 11 - chdir */ |
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#define SYS_pipe 13 /* 42 - time */ |
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#define SYS_stat 14 /* 106 - mknod */ |
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#define SYS_chmod 15 |
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#define SYS_chown 16 /* 202 - lchown */ |
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#define SYS_utime 17 /* 30 - break */ |
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#define SYS_wait 18 /* n/a - oldstat */ |
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#define SYS_lseek 19 /*x*/ |
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#define SYS_getpid 20 |
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#define SYS_isatty 21 /* n/a - mount */ |
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#define SYS_fstat 22 /* 108 - oldumount */ |
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#define SYS_time 23 /* 13 - setuid */ |
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#define SYS_gettimeofday 24 /*x 78 - getuid (not implemented on WIN32) */ |
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#define SYS_times 25 /*X 43 - stime (Xtensa-specific implementation) */ |
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#define SYS_socket 26 |
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#define SYS_sendto 27 |
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#define SYS_recvfrom 28 |
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#define SYS_select_one 29 /* not compitible select, one file descriptor at the time */ |
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#define SYS_bind 30 |
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#define SYS_ioctl 31 |
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#define SYS_iss_argc 1000 /* returns value of argc */ |
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#define SYS_iss_argv_size 1001 /* bytes needed for argv & arg strings */ |
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#define SYS_iss_set_argv 1002 /* saves argv & arg strings at given addr */ |
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/* |
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* SYS_select_one specifiers |
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*/ |
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#define XTISS_SELECT_ONE_READ 1 |
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#define XTISS_SELECT_ONE_WRITE 2 |
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#define XTISS_SELECT_ONE_EXCEPT 3 |
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static int errno; |
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static inline int __simc(int a, int b, int c, int d) |
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{ |
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register int a1 asm("a2") = a; |
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register int b1 asm("a3") = b; |
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register int c1 asm("a4") = c; |
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register int d1 asm("a5") = d; |
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__asm__ __volatile__ ( |
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"simcall\n" |
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: "+r"(a1), "+r"(b1) |
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: "r"(c1), "r"(d1) |
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: "memory"); |
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errno = b1; |
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return a1; |
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} |
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static inline int simc_exit(int exit_code) |
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{ |
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return __simc(SYS_exit, exit_code, 0, 0); |
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} |
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static inline int simc_open(const char *file, int flags, int mode) |
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{ |
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return __simc(SYS_open, (int) file, flags, mode); |
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} |
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static inline int simc_close(int fd) |
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{ |
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return __simc(SYS_close, fd, 0, 0); |
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} |
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static inline int simc_ioctl(int fd, int request, void *arg) |
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{ |
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return __simc(SYS_ioctl, fd, request, (int) arg); |
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} |
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static inline int simc_read(int fd, void *buf, size_t count) |
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{ |
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return __simc(SYS_read, fd, (int) buf, count); |
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} |
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static inline int simc_write(int fd, const void *buf, size_t count) |
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{ |
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return __simc(SYS_write, fd, (int) buf, count); |
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} |
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static inline int simc_poll(int fd) |
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{ |
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long timeval[2] = { 0, 0 }; |
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return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&timeval); |
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} |
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static inline int simc_lseek(int fd, uint32_t off, int whence) |
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{ |
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return __simc(SYS_lseek, fd, off, whence); |
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} |
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static inline int simc_argc(void) |
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{ |
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return __simc(SYS_iss_argc, 0, 0, 0); |
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} |
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static inline int simc_argv_size(void) |
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{ |
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return __simc(SYS_iss_argv_size, 0, 0, 0); |
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} |
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static inline void simc_argv(void *buf) |
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{ |
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__simc(SYS_iss_set_argv, (int)buf, 0, 0); |
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} |
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#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */ |
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