| 1 | /* |
| 2 | * Syscall implementations for semihosting. |
| 3 | * |
| 4 | * Copyright (c) 2022 Linaro |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 7 | */ |
| 8 | |
| 9 | #ifndef SEMIHOSTING_SYSCALLS_H |
| 10 | #define SEMIHOSTING_SYSCALLS_H |
| 11 | |
| 12 | #include "exec/vaddr.h" |
| 13 | #include "gdbstub/syscalls.h" |
| 14 | |
| 15 | /* |
| 16 | * Argument loading from the guest is performed by the caller; |
| 17 | * results are returned via the 'complete' callback. |
| 18 | * |
| 19 | * String operands are in address/len pairs. The len argument may be 0 |
| 20 | * (when the semihosting abi does not already provide the length), |
| 21 | * or non-zero (where it should include the terminating zero). |
| 22 | */ |
| 23 | |
| 24 | typedef struct GuestFD GuestFD; |
| 25 | |
| 26 | void semihost_sys_open(CPUState *cs, gdb_syscall_complete_cb complete, |
| 27 | vaddr fname, uint64_t fname_len, |
| 28 | int gdb_flags, int mode); |
| 29 | |
| 30 | void semihost_sys_close(CPUState *cs, gdb_syscall_complete_cb complete, |
| 31 | int fd); |
| 32 | |
| 33 | void semihost_sys_read(CPUState *cs, gdb_syscall_complete_cb complete, |
| 34 | int fd, vaddr buf, uint64_t len); |
| 35 | |
| 36 | void semihost_sys_read_gf(CPUState *cs, gdb_syscall_complete_cb complete, |
| 37 | GuestFD *gf, vaddr buf, uint64_t len); |
| 38 | |
| 39 | void semihost_sys_write(CPUState *cs, gdb_syscall_complete_cb complete, |
| 40 | int fd, vaddr buf, uint64_t len); |
| 41 | |
| 42 | void semihost_sys_write_gf(CPUState *cs, gdb_syscall_complete_cb complete, |
| 43 | GuestFD *gf, vaddr buf, uint64_t len); |
| 44 | |
| 45 | void semihost_sys_lseek(CPUState *cs, gdb_syscall_complete_cb complete, |
| 46 | int fd, int64_t off, int gdb_whence); |
| 47 | |
| 48 | void semihost_sys_isatty(CPUState *cs, gdb_syscall_complete_cb complete, |
| 49 | int fd); |
| 50 | |
| 51 | void semihost_sys_flen(CPUState *cs, gdb_syscall_complete_cb fstat_cb, |
| 52 | gdb_syscall_complete_cb flen_cb, |
| 53 | int fd, vaddr fstat_addr); |
| 54 | |
| 55 | void semihost_sys_fstat(CPUState *cs, gdb_syscall_complete_cb complete, |
| 56 | int fd, vaddr addr); |
| 57 | |
| 58 | void semihost_sys_stat(CPUState *cs, gdb_syscall_complete_cb complete, |
| 59 | vaddr fname, uint64_t fname_len, |
| 60 | vaddr addr); |
| 61 | |
| 62 | void semihost_sys_remove(CPUState *cs, gdb_syscall_complete_cb complete, |
| 63 | vaddr fname, uint64_t fname_len); |
| 64 | |
| 65 | void semihost_sys_rename(CPUState *cs, gdb_syscall_complete_cb complete, |
| 66 | vaddr oname, uint64_t oname_len, |
| 67 | vaddr nname, uint64_t nname_len); |
| 68 | |
| 69 | void semihost_sys_system(CPUState *cs, gdb_syscall_complete_cb complete, |
| 70 | vaddr cmd, uint64_t cmd_len); |
| 71 | |
| 72 | void semihost_sys_gettimeofday(CPUState *cs, gdb_syscall_complete_cb complete, |
| 73 | vaddr tv_addr, vaddr tz_addr); |
| 74 | |
| 75 | void semihost_sys_poll_one(CPUState *cs, gdb_syscall_complete_cb complete, |
| 76 | int fd, GIOCondition cond, int timeout); |
| 77 | |
| 78 | #endif /* SEMIHOSTING_SYSCALLS_H */ |