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