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/cpu-defs.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 target_ulong fname, target_ulong 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, target_ulong buf, target_ulong len); 35 36 void semihost_sys_read_gf(CPUState *cs, gdb_syscall_complete_cb complete, 37 GuestFD *gf, target_ulong buf, target_ulong len); 38 39 void semihost_sys_write(CPUState *cs, gdb_syscall_complete_cb complete, 40 int fd, target_ulong buf, target_ulong len); 41 42 void semihost_sys_write_gf(CPUState *cs, gdb_syscall_complete_cb complete, 43 GuestFD *gf, target_ulong buf, target_ulong 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, target_ulong fstat_addr); 54 55 void semihost_sys_fstat(CPUState *cs, gdb_syscall_complete_cb complete, 56 int fd, target_ulong addr); 57 58 void semihost_sys_stat(CPUState *cs, gdb_syscall_complete_cb complete, 59 target_ulong fname, target_ulong fname_len, 60 target_ulong addr); 61 62 void semihost_sys_remove(CPUState *cs, gdb_syscall_complete_cb complete, 63 target_ulong fname, target_ulong fname_len); 64 65 void semihost_sys_rename(CPUState *cs, gdb_syscall_complete_cb complete, 66 target_ulong oname, target_ulong oname_len, 67 target_ulong nname, target_ulong nname_len); 68 69 void semihost_sys_system(CPUState *cs, gdb_syscall_complete_cb complete, 70 target_ulong cmd, target_ulong cmd_len); 71 72 void semihost_sys_gettimeofday(CPUState *cs, gdb_syscall_complete_cb complete, 73 target_ulong tv_addr, target_ulong 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 */ 79