include/semihosting/syscalls.h

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