diff options
Diffstat (limited to 'arch/xtensa/platforms/iss/include/platform/simcall.h')
| -rw-r--r-- | arch/xtensa/platforms/iss/include/platform/simcall.h | 104 |
1 files changed, 37 insertions, 67 deletions
diff --git a/arch/xtensa/platforms/iss/include/platform/simcall.h b/arch/xtensa/platforms/iss/include/platform/simcall.h index f42870ab551b..e1ec50ce39ee 100644 --- a/arch/xtensa/platforms/iss/include/platform/simcall.h +++ b/arch/xtensa/platforms/iss/include/platform/simcall.h @@ -6,82 +6,29 @@ * for more details. * * Copyright (C) 2001 Tensilica Inc. - * Copyright (C) 2017 Cadence Design Systems Inc. + * Copyright (C) 2017 - 2021 Cadence Design Systems Inc. */ #ifndef _XTENSA_PLATFORM_ISS_SIMCALL_H #define _XTENSA_PLATFORM_ISS_SIMCALL_H +#include <linux/bug.h> -/* - * System call like services offered by the simulator host. - */ - -#define SYS_nop 0 /* unused */ -#define SYS_exit 1 /*x*/ -#define SYS_fork 2 -#define SYS_read 3 /*x*/ -#define SYS_write 4 /*x*/ -#define SYS_open 5 /*x*/ -#define SYS_close 6 /*x*/ -#define SYS_rename 7 /*x 38 - waitpid */ -#define SYS_creat 8 /*x*/ -#define SYS_link 9 /*x (not implemented on WIN32) */ -#define SYS_unlink 10 /*x*/ -#define SYS_execv 11 /* n/a - execve */ -#define SYS_execve 12 /* 11 - chdir */ -#define SYS_pipe 13 /* 42 - time */ -#define SYS_stat 14 /* 106 - mknod */ -#define SYS_chmod 15 -#define SYS_chown 16 /* 202 - lchown */ -#define SYS_utime 17 /* 30 - break */ -#define SYS_wait 18 /* n/a - oldstat */ -#define SYS_lseek 19 /*x*/ -#define SYS_getpid 20 -#define SYS_isatty 21 /* n/a - mount */ -#define SYS_fstat 22 /* 108 - oldumount */ -#define SYS_time 23 /* 13 - setuid */ -#define SYS_gettimeofday 24 /*x 78 - getuid (not implemented on WIN32) */ -#define SYS_times 25 /*X 43 - stime (Xtensa-specific implementation) */ -#define SYS_socket 26 -#define SYS_sendto 27 -#define SYS_recvfrom 28 -#define SYS_select_one 29 /* not compitible select, one file descriptor at the time */ -#define SYS_bind 30 -#define SYS_ioctl 31 - -#define SYS_iss_argc 1000 /* returns value of argc */ -#define SYS_iss_argv_size 1001 /* bytes needed for argv & arg strings */ -#define SYS_iss_set_argv 1002 /* saves argv & arg strings at given addr */ - -/* - * SYS_select_one specifiers - */ - -#define XTISS_SELECT_ONE_READ 1 -#define XTISS_SELECT_ONE_WRITE 2 -#define XTISS_SELECT_ONE_EXCEPT 3 - -static int errno; - -static inline int __simc(int a, int b, int c, int d) -{ - register int a1 asm("a2") = a; - register int b1 asm("a3") = b; - register int c1 asm("a4") = c; - register int d1 asm("a5") = d; - __asm__ __volatile__ ( - "simcall\n" - : "+r"(a1), "+r"(b1) - : "r"(c1), "r"(d1) - : "memory"); - errno = b1; - return a1; -} +#ifdef CONFIG_XTENSA_SIMCALL_ISS +#include <platform/simcall-iss.h> +#endif +#ifdef CONFIG_XTENSA_SIMCALL_GDBIO +#include <platform/simcall-gdbio.h> +#endif static inline int simc_exit(int exit_code) { +#ifdef SYS_exit return __simc(SYS_exit, exit_code, 0, 0); +#else + WARN_ONCE(1, "%s: not implemented\n", __func__); + return -1; +#endif } static inline int simc_open(const char *file, int flags, int mode) @@ -96,7 +43,12 @@ static inline int simc_close(int fd) static inline int simc_ioctl(int fd, int request, void *arg) { +#ifdef SYS_ioctl return __simc(SYS_ioctl, fd, request, (int) arg); +#else + WARN_ONCE(1, "%s: not implemented\n", __func__); + return -1; +#endif } static inline int simc_read(int fd, void *buf, size_t count) @@ -111,9 +63,14 @@ static inline int simc_write(int fd, const void *buf, size_t count) static inline int simc_poll(int fd) { +#ifdef SYS_select_one long timeval[2] = { 0, 0 }; return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&timeval); +#else + WARN_ONCE(1, "%s: not implemented\n", __func__); + return -1; +#endif } static inline int simc_lseek(int fd, uint32_t off, int whence) @@ -123,18 +80,31 @@ static inline int simc_lseek(int fd, uint32_t off, int whence) static inline int simc_argc(void) { +#ifdef SYS_iss_argc return __simc(SYS_iss_argc, 0, 0, 0); +#else + WARN_ONCE(1, "%s: not implemented\n", __func__); + return 0; +#endif } static inline int simc_argv_size(void) { +#ifdef SYS_iss_argv_size return __simc(SYS_iss_argv_size, 0, 0, 0); +#else + WARN_ONCE(1, "%s: not implemented\n", __func__); + return 0; +#endif } static inline void simc_argv(void *buf) { +#ifdef SYS_iss_set_argv __simc(SYS_iss_set_argv, (int)buf, 0, 0); +#else + WARN_ONCE(1, "%s: not implemented\n", __func__); +#endif } #endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */ - |